[base] Fold GrConfig.h into SkTypes.h

Two macros were folded into GrGLUtil.h, where the only use was.

Change-Id: I194bc1d36d3f7edb811d27e3368c5235e79af89b
Bug: skia:13983
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/628418
Reviewed-by: Brian Salomon <bsalomon@google.com>
26 files changed