GUACAMOLE-1809: Remove obsolete license information

The Spring framework is no longer used.

doc/licenses/spring-framework-5.3.27/README

@@ -1,8 +0,0 @@
-Spring Framework (https://spring.io/projects/spring-framework)
---------------------------------------------------------------
-
-    Version: 5.3.27
-    From: 'Spring' (https://spring.io/)
-    License(s):
-        Apache v2.0
-

doc/licenses/spring-framework-5.3.27/dep-coordinates.txt

@@ -1,7 +0,0 @@
-org.springframework:spring-aop:jar:5.3.27
-org.springframework:spring-beans:jar:5.3.27
-org.springframework:spring-context:jar:5.3.27
-org.springframework:spring-core:jar:5.3.27
-org.springframework:spring-expression:jar:5.3.27
-org.springframework:spring-jcl:jar:5.3.27
-org.springframework:spring-web:jar:5.3.27

doc/licenses/spring-security-5.8.3/NOTICE

@@ -1,2 +0,0 @@
-This product includes software developed by Spring Security
-Project (https://www.springframework.org/security).

doc/licenses/spring-security-5.8.3/README

@@ -1,8 +0,0 @@
-Spring Security (https://spring.io/projects/spring-security)
-------------------------------------------------------------
-
-    Version: 5.8.3
-    From: 'Spring' (https://spring.io/)
-    License(s):
-        Apache v2.0
-

doc/licenses/spring-security-5.8.3/dep-coordinates.txt

@@ -1,3 +0,0 @@
-org.springframework.security:spring-security-core:jar:5.8.3
-org.springframework.security:spring-security-crypto:jar:5.8.3
-org.springframework.security:spring-security-web:jar:5.8.3

extensions/guacamole-auth-json/src/main/java/org/apache/guacamole/auth/json/RequestValidationService.java

@@ -52,7 +52,7 @@ public class RequestValidationService {
      * @param confService
      *     The (mock) instance of ConfigurationService
      */
-    private RequestValidationService(ConfigurationService confService) {
+    public RequestValidationService(ConfigurationService confService) {
         this.confService = confService;
     }
 

extensions/guacamole-auth-json/src/test/java/org/apache/guacamole/auth/json/RequestValidationServiceTest.java

@@ -61,7 +61,7 @@ public class RequestValidationServiceTest {
          */
         private MockConfigurationService(String trustedNetworks) {
             if (trustedNetworks == null || trustedNetworks.isEmpty())
-                trustedNetworks = Collections.<String>emptyList();
+                this.trustedNetworks = Collections.<String>emptyList();
             else
                 this.trustedNetworks = Arrays.asList(Pattern.compile(",\\s*").split(trustedNetworks));
         }
@@ -372,7 +372,7 @@ public class RequestValidationServiceTest {
     @Test
     public void testNoTrustedNetwork() {
 
-        requestService = new RequestValidationService(new MockConfigurationService());
+        requestService = new RequestValidationService(new MockConfigurationService(null));
 
         try {
             assertTrue(requestService.isAuthenticationAllowed(mockHttpServletRequest("1.1.1.1")));