MediaPlayer2: uid is always valid.

Test: MediaPlayer2 plays
Bug: 63934228
Change-Id: I4c9fefe1cdb04f0f7fa82cf08f382c12f6bf5b0b
diff --git a/media/libmediaplayer2/nuplayer2/GenericSource2.h b/media/libmediaplayer2/nuplayer2/GenericSource2.h
index bc13eb7..1a5409a 100644
--- a/media/libmediaplayer2/nuplayer2/GenericSource2.h
+++ b/media/libmediaplayer2/nuplayer2/GenericSource2.h
@@ -43,7 +43,7 @@
 struct NuPlayer2::GenericSource2 : public NuPlayer2::Source,
                                    public MediaBufferObserver // Modular DRM
 {
-    GenericSource2(const sp<AMessage> &notify, bool uidValid, uid_t uid,
+    GenericSource2(const sp<AMessage> &notify, uid_t uid,
                    const sp<MediaClock> &mediaClock);
 
     status_t setDataSource(
@@ -150,7 +150,6 @@
     // Secure codec is required.
     bool mIsSecure;
     bool mIsStreaming;
-    bool mUIDValid;
     uid_t mUID;
     const sp<MediaClock> mMediaClock;
     sp<MediaHTTPService> mHTTPService;