fixup! Bug 1832832 - protect encoder accesses in Java callbacks....

fixup! Bug 1832832 - protect encoder accesses in Java callbacks. r=media-playback-reviewers,alwu a=pascalc

- MOZ_GUARDED_BY is just GUARDED_BY in esr 102

dom/media/platforms/android/AndroidDataEncoder.h

@@ -56,7 +56,7 @@ class AndroidDataEncoder final : public MediaDataEncoder {
 
    private:
     Mutex mMutex;
-    AndroidDataEncoder* mEncoder MOZ_GUARDED_BY(mMutex);
+    AndroidDataEncoder* mEncoder GUARDED_BY(mMutex);
   };
   friend class CallbacksSupport;