Removing GL context rate limiting feature and related wrappers

cc/blink/web_external_texture_layer_impl.cc

Index: cc/blink/web_external_texture_layer_impl.cc
diff --git a/cc/blink/web_external_texture_layer_impl.cc b/cc/blink/web_external_texture_layer_impl.cc
index e9700c6c6d9a96a594299a1f1b65ca5166a45b1c..acc7df44e6382b2a6ee1198c09ceb50bace135bd 100644
--- a/cc/blink/web_external_texture_layer_impl.cc
+++ b/cc/blink/web_external_texture_layer_impl.cc
@@ -57,10 +57,6 @@ void WebExternalTextureLayerImpl::setBlendBackgroundColor(bool blend) {
   static_cast<TextureLayer*>(layer_->layer())->SetBlendBackgroundColor(blend);
 }
 
-void WebExternalTextureLayerImpl::setRateLimitContext(bool rate_limit) {
-  static_cast<TextureLayer*>(layer_->layer())->SetRateLimitContext(rate_limit);
-}
-
 void WebExternalTextureLayerImpl::setNearestNeighbor(bool nearest_neighbor) {
   static_cast<TextureLayer*>(layer_->layer())
       ->SetNearestNeighbor(nearest_neighbor);