Fixing bug in MediaStream.java that caused double disposal of track.

webrtc/api/java/src/org/webrtc/MediaStream.java

Index: webrtc/api/java/src/org/webrtc/MediaStream.java
diff --git a/webrtc/api/java/src/org/webrtc/MediaStream.java b/webrtc/api/java/src/org/webrtc/MediaStream.java
index d18c72cca30b1dee55530f14da50773b182e94fa..2128b735bf3f736a5a7ca7be8ebce153b7e0429b 100644
--- a/webrtc/api/java/src/org/webrtc/MediaStream.java
+++ b/webrtc/api/java/src/org/webrtc/MediaStream.java
@@ -55,20 +55,14 @@ public class MediaStream {
   }
 
   public boolean removeTrack(AudioTrack track) {
-    if (nativeRemoveAudioTrack(nativeStream, track.nativeTrack)) {
-      audioTracks.remove(track);
-      return true;
-    }
-    return false;
+    audioTracks.remove(track);
+    return nativeRemoveAudioTrack(nativeStream, track.nativeTrack);
   }
 
   public boolean removeTrack(VideoTrack track) {
-    if (nativeRemoveVideoTrack(nativeStream, track.nativeTrack)) {
-      videoTracks.remove(track);
-      preservedVideoTracks.remove(track);
-      return true;
-    }
-    return false;
+    videoTracks.remove(track);
+    preservedVideoTracks.remove(track);
+    return nativeRemoveVideoTrack(nativeStream, track.nativeTrack);
   }
 
   public void dispose() {