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 f20c200a417624a1475fc45e1a343f03eb57034d..709f6433679c493b7a15cf81ba1be3545909dbb4 100644
--- a/mojo/gles2/command_buffer_client_impl.cc
+++ b/mojo/gles2/command_buffer_client_impl.cc
@@ -358,12 +358,6 @@ 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 =