Turn off -Wreturn-std-move-in-c++11

Change-Id: I127c979670c3dc7dac2e35908a795afbdefca8f6
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/234902
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
diff --git a/src/gpu/gl/GrGLAssembleWebGLInterfaceAutogen.cpp b/src/gpu/gl/GrGLAssembleWebGLInterfaceAutogen.cpp
index 1516368..73f24c8 100644
--- a/src/gpu/gl/GrGLAssembleWebGLInterfaceAutogen.cpp
+++ b/src/gpu/gl/GrGLAssembleWebGLInterfaceAutogen.cpp
@@ -231,6 +231,6 @@
     interface->fStandard = kWebGL_GrGLStandard;
     interface->fExtensions.swap(&extensions);
 
-    return std::move(interface);
+    return interface;
 }
 #endif