Remove superfluous comments

Use '^\s+//\ \~\ .*$' and '^\s+//\ ============+$' regular expression
searches to remove superfluous comments.

Prior to this commit, many classes would have comments to indicate
blocks of code (such as constructors/methods/instance fields). These
added a lot of noise and weren't all that helpful, especially given
the outline views available in most modern IDEs.

Issue gh-8945

remoting/src/main/java/org/springframework/security/remoting/httpinvoker/AuthenticationSimpleHttpInvokerRequestExecutor.java

@@ -36,19 +36,10 @@ import org.springframework.security.core.context.SecurityContextHolder;
  */
 public class AuthenticationSimpleHttpInvokerRequestExecutor extends SimpleHttpInvokerRequestExecutor {
 
-	// ~ Static fields/initializers
-	// =====================================================================================
-
 	private static final Log logger = LogFactory.getLog(AuthenticationSimpleHttpInvokerRequestExecutor.class);
 
-	// ~ Instance fields
-	// ================================================================================================
-
 	private AuthenticationTrustResolver trustResolver = new AuthenticationTrustResolverImpl();
 
-	// ~ Methods
-	// ========================================================================================================
-
 	/**
 	 * Provided so subclasses can perform additional configuration if required (eg set
 	 * additional request headers for non-security related information etc).

remoting/src/main/java/org/springframework/security/remoting/rmi/ContextPropagatingRemoteInvocation.java

@@ -48,16 +48,10 @@ public class ContextPropagatingRemoteInvocation extends RemoteInvocation {
 
 	private static final Log logger = LogFactory.getLog(ContextPropagatingRemoteInvocation.class);
 
-	// ~ Instance fields
-	// ================================================================================================
-
 	private final String principal;
 
 	private final String credentials;
 
-	// ~ Constructors
-	// ===================================================================================================
-
 	/**
 	 * Constructs the object, storing the principal and credentials extracted from the
 	 * client-side security context.
@@ -84,9 +78,6 @@ public class ContextPropagatingRemoteInvocation extends RemoteInvocation {
 		}
 	}
 
-	// ~ Methods
-	// ========================================================================================================
-
 	/**
 	 * Invoked on the server-side.
 	 * <p>

remoting/src/main/java/org/springframework/security/remoting/rmi/ContextPropagatingRemoteInvocationFactory.java

@@ -35,9 +35,6 @@ import org.springframework.remoting.support.RemoteInvocationFactory;
  */
 public class ContextPropagatingRemoteInvocationFactory implements RemoteInvocationFactory {
 
-	// ~ Methods
-	// ========================================================================================================
-
 	public RemoteInvocation createRemoteInvocation(MethodInvocation methodInvocation) {
 		return new ContextPropagatingRemoteInvocation(methodInvocation);
 	}

remoting/src/test/java/org/springframework/security/remoting/httpinvoker/AuthenticationSimpleHttpInvokerRequestExecutorTests.java

@@ -39,8 +39,6 @@ import org.springframework.security.core.context.SecurityContextHolder;
  */
 public class AuthenticationSimpleHttpInvokerRequestExecutorTests {
 
-	// ~ Methods
-	// ========================================================================================================
 	@After
 	public void tearDown() {
 		SecurityContextHolder.clearContext();
@@ -95,9 +93,6 @@ public class AuthenticationSimpleHttpInvokerRequestExecutorTests {
 		assertThat(conn.getRequestProperty("Authorization")).isNull();
 	}
 
-	// ~ Inner Classes
-	// ==================================================================================================
-
 	private class MockHttpURLConnection extends HttpURLConnection {
 
 		private Map<String, String> requestProperties = new HashMap<>();

remoting/src/test/java/org/springframework/security/remoting/rmi/ContextPropagatingRemoteInvocationTests.java

@@ -39,8 +39,6 @@ import org.springframework.test.util.ReflectionTestUtils;
  */
 public class ContextPropagatingRemoteInvocationTests {
 
-	// ~ Methods
-	// ========================================================================================================
 	@After
 	public void tearDown() {
 		SecurityContextHolder.clearContext();