GUACAMOLE-1298: Trim down NOTICE files to only those attribution notices that are required.

From https://infra.apache.org/licensing-howto.html#bundle-asf-product:

>
> Modifications to NOTICE
> -----------------------
>
> The NOTICE file is reserved for a certain subset of legally required
> notifications which are not satisfied by either the text of LICENSE or
> the presence of licensing information embedded within the bundled
> dependency. Aside from Apache-licensed dependencies which supply NOTICE
> files of their own, it is uncommon for a dependency to require additions
> to NOTICE.
>
> Copyright notifications which have been relocated, rather than
> removed, from source files must be preserved in NOTICE. However,
> elements such as the copyright notifications embedded within BSD and MIT
> licenses do not need to be duplicated in NOTICE. You can leave those
> notices in their original locations.
>
> It is important to keep NOTICE as brief and simple as possible, as each
> addition places a burden on downstream consumers.
>
> *Do not* add anything to NOTICE which is not legally required.
>

doc/licenses/cas-client-3.4.1/NOTICE

@@ -1,38 +1,2 @@
-Licensed to Apereo under one or more contributor license
-agreements. See the NOTICE file distributed with this work
-for additional information regarding copyright ownership.
-Apereo licenses this file to you under the Apache License,
-Version 2.0 (the "License"); you may not use this file
-except in compliance with the License.  You may obtain a
-copy of the License at the following location:
-
-  http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing,
-software distributed under the License is distributed on an
-"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-KIND, either express or implied.  See the License for the
-specific language governing permissions and limitations
-under the License.
-
 This project includes:
-  AOP alliance under Public Domain
-  Apache Log4j under The Apache Software License, Version 2.0
-  Apache XML Security under The Apache Software License, Version 2.0
-  Commons Codec under The Apache Software License, Version 2.0
   Jasig CAS Client for Java - Core under Apache License Version 2.0
-  Java Servlet API under CDDL + GPLv2 with classpath exception
-  JavaBeans Activation Framework (JAF) under Common Development and Distribution License (CDDL) v1.0
-  JavaMail API under Common Development and Distribution License (CDDL) v1.0
-  JCL 1.1.1 implemented over SLF4J under MIT License
-  JUnit under Common Public License Version 1.0
-  SLF4J API Module under MIT License
-  SLF4J Simple Binding under MIT License
-  spring-aop under The Apache Software License, Version 2.0
-  spring-asm under The Apache Software License, Version 2.0
-  spring-beans under The Apache Software License, Version 2.0
-  spring-context under The Apache Software License, Version 2.0
-  spring-core under The Apache Software License, Version 2.0
-  spring-expression under The Apache Software License, Version 2.0
-  spring-test under The Apache Software License, Version 2.0
-

doc/licenses/directory-api-2.0.0/NOTICE

@@ -4,9 +4,7 @@ Copyright 2003-2019 The Apache Software Foundation
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
 
-jBCrypt 0.4.1 license
+This product includes/uses jBCrypt which is subject to the following license:
---------------------------------------------------------------------------------------------------
-jBCrypt is subject to the following license:
 
 /*
  * Copyright (c) 2006 Damien Miller <djm@mindrot.org>

doc/licenses/generate-license-files.sh

@@ -327,8 +327,6 @@ EOF
             echo >> "$OUTPUT_DIR/LICENSE"
             trim_file "$LICENSE_FILE" >> "$OUTPUT_DIR/LICENSE"
         fi
-    else
-        error "No recognizable license file within $LICENSE_INFO_DIR"
     fi
 
     # Copy NOTICE, if provided

doc/licenses/jakarta-validation-api-2.0.2/NOTICE

@@ -0,0 +1,11 @@
+# Notices for Eclipse Jakarta Bean Validation
+
+This content is produced and maintained by the Eclipse Jakarta Bean Validation
+project.
+
+* Project home: https://projects.eclipse.org/projects/ee4j.bean-validation
+
+## Trademarks
+
+ Jakarta Bean Validation is a trademark of the Eclipse Foundation.
+

doc/licenses/jakarta-validation-api-2.0.2/NOTICE.md

@@ -1,43 +0,0 @@
-# Notices for Eclipse Jakarta Bean Validation
-
-This content is produced and maintained by the Eclipse Jakarta Bean Validation
-project.
-
-* Project home: https://projects.eclipse.org/projects/ee4j.bean-validation
-
-## Trademarks
-
- Jakarta Bean Validation is a trademark of the Eclipse Foundation.
-
-## Copyright
-
-All content is the property of the respective authors or their employers. For
-more information regarding authorship of content, please consult the listed
-source code repository logs.
-
-## Declared Project Licenses
-
-This program and the accompanying materials are made available under the terms
-of the Apache License, Version 2.0 which is available at
-https://www.apache.org/licenses/LICENSE-2.0.
-
-SPDX-License-Identifier: Apache-2.0
-
-## Source Code
-
-The project maintains the following source code repositories:
-
- * [The specification repository](https://github.com/eclipse-ee4j/beanvalidation-spec)
- * [The API repository](https://github.com/eclipse-ee4j/beanvalidation-api)
- * [The TCK repository](https://github.com/eclipse-ee4j/beanvalidation-tck)
-
-## Third-party Content
-
-This project leverages the following third party content.
-
-Test dependencies:
-
- * [TestNG](https://github.com/cbeust/testng) - Apache License 2.0
- * [JCommander](https://github.com/cbeust/jcommander) - Apache License 2.0
- * [SnakeYAML](https://bitbucket.org/asomov/snakeyaml/src) - Apache License 2.0
-

doc/licenses/jaxb-fi-1.2.16/NOTICE

@@ -9,17 +9,3 @@ project.
 
 Eclipse Implementation of JAXB is a trademark of the Eclipse Foundation.
 
-## Copyright
-
-All content is the property of the respective authors or their employers. For
-more information regarding authorship of content, please consult the listed
-source code repository logs.
-
-## Cryptography
-
-Content may contain encryption software. The country in which you are currently
-may have restrictions on the import, possession, and use, and/or re-export to
-another country, of encryption software. BEFORE using any encryption software,
-please check the country's laws, regulations and policies concerning the import,
-possession, or use, and re-export of encryption software, to see if this is
-permitted.

doc/licenses/mybatis-3.2.8/NOTICE

@@ -4,18 +4,6 @@ iBATIS
 
    Copyright 2010 The Apache Software Foundation
 
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-
 OGNL
 //--------------------------------------------------------------------------
 //  Copyright (c) 2004, Drew Davidson and Luke Blanshard
@@ -55,14 +43,3 @@ Refactored SqlBuilder class (SQL, AbstractSQL)
 
    Copyright 2010 Adam Gent
 
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.

doc/licenses/mybatis-guice-3.6/NOTICE

@@ -10,29 +10,6 @@ iBATIS
 
    Copyright 2010 The Apache Software Foundation
 
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-
 Google Guice
    Copyright 2010 The Apache Software Foundation
 
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.