cleanup: Silence an unused-parameter warning

Change-Id: Ic0ee9c08642d4efc6ef1f2333ebe6614e9c2df87

org.eclipse.jgit.junit.http/src/org/eclipse/jgit/junit/http/RecordingLogger.java

@@ -184,6 +184,7 @@ public class RecordingLogger implements Logger {
 		// Ignore (not relevant to test failures)
 	}
 
+	@SuppressWarnings("unused")
 	public void ignore(Throwable arg0) {
 		// Ignore (not relevant to test failures)
 	}