Leave CreateStreamTexture route id out of the GL interface.

mojo/gles2/command_buffer_client_impl.cc

Index: mojo/gles2/command_buffer_client_impl.cc
diff --git a/mojo/gles2/command_buffer_client_impl.cc b/mojo/gles2/command_buffer_client_impl.cc
index 5aca7a43abbff73bd39dcfc559e9e5d598b2bb7b..c6990b26e3f3bc16b2e4907a94489ac4e7c7f0ae 100644
--- a/mojo/gles2/command_buffer_client_impl.cc
+++ b/mojo/gles2/command_buffer_client_impl.cc
@@ -362,12 +362,6 @@ void CommandBufferClientImpl::SetSurfaceVisible(bool visible) {
   NOTIMPLEMENTED();
 }
 
-uint32_t CommandBufferClientImpl::CreateStreamTexture(uint32_t texture_id) {
-  // TODO(piman)
-  NOTIMPLEMENTED();
-  return 0;
-}
-
 void CommandBufferClientImpl::DidLoseContext(int32_t lost_reason) {
   last_state_.error = gpu::error::kLostContext;
   last_state_.context_lost_reason =