Revert "Explicitly enable framebuffer SRGB blending in StateManagerGL." Compilation failure on mac and linux. This reverts commit e19d7f90355f02ac7a7cd0a2ac130e0859cd3cc7. Change-Id: I638c3ffebb8c7ad0e3fe2e1e65d6212487bfc6ae Reviewed-on: https://chromium-review.googlesource.com/302790 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>