Remove Flatbuffers patch to diagnose Windows hang.

Author: jonsimantov

messaging/messaging_java/build.gradle

@@ -81,14 +81,15 @@ afterEvaluate {
              'https://github.com/google/flatbuffers.git',
              flatbuffersDir
       }
-      exec {
-        executable 'git'
-        args 'apply',
-             '../../scripts/git/patches/flatbuffers/0001-remove-unused-var.patch',
-	     '--verbose',
-	     '--directory',
-	     'messaging/messaging_java/build/flatbuffers'
-      }
+      // TODO(jsimantov): Temporarily remove to diagnose Windows build issue.
+      // exec {
+      //   executable 'git'
+      //   args 'apply',
+      //        '../../scripts/git/patches/flatbuffers/0001-remove-unused-var.patch',
+      //        '--verbose',
+      //        '--directory',
+      //        'messaging/messaging_java/build/flatbuffers'
+      //   }
     }
 
     // Locate or build flatc.