Remove a debugging code in renderergl_utils.cpp
Remove a debugging code in renderergl_utils.cpp

Bug: chromium:1171371
Change-Id: I7cf00edbc337150e40e7afb4f6c5fc88862f0734
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2700332
Reviewed-by: Geoff Lang <b6fc25fe0362055230985c05cbfa8adb741ccc0f@chromium.org>
Commit-Queue: Peng Huang <18764e26bc5bdc5f80483a2fbf46c7fcc384c153@chromium.org>

ppy/angle,ppy/angle,ppy/angle,ppy/angle