Remove redundant initializers from WebRTC Java code.

Removes redundant field initializers such as null, 0 and false.

Bug: webrtc:9742
Change-Id: I1e54f6c6000885cf95f7af8e2701875a78445497
Reviewed-on: https://webrtc-review.googlesource.com/99481
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Commit-Queue: Sami Kalliomäki <sakal@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24676}
diff --git a/sdk/android/api/org/webrtc/SurfaceTextureHelper.java b/sdk/android/api/org/webrtc/SurfaceTextureHelper.java
index decdd05..bb67d1f9 100644
--- a/sdk/android/api/org/webrtc/SurfaceTextureHelper.java
+++ b/sdk/android/api/org/webrtc/SurfaceTextureHelper.java
@@ -71,9 +71,9 @@
   // These variables are only accessed from the |handler| thread.
   @Nullable private VideoSink listener;
   // The possible states of this class.
-  private boolean hasPendingTexture = false;
-  private volatile boolean isTextureInUse = false;
-  private boolean isQuitting = false;
+  private boolean hasPendingTexture;
+  private volatile boolean isTextureInUse;
+  private boolean isQuitting;
   private int frameRotation;
   private int textureWidth;
   private int textureHeight;