Revert "Add driver bug workarounds to GrCaps"

This reverts commit 328490c6a1625ce51d0e81688e0c85c79c400d86.

Reason for revert: Breaking compiles inside chrome

Original change's description:
> Add driver bug workarounds to GrCaps
> 
> This moves GrDriverBugWorkarounds to include so that it can be included
> by GrCaps.  This also makes GrContextOptions a nearly empty class in
> the case of !SK_SUPPORT_GPU so that non-gpu builds don't need to build
> in GrDriverBugWorkarounds.cpp.
> 
> Bug: chromium: 829614
> Change-Id: Iedf73677fd09e9a487cfe618a696fd4b25c8703d
> Reviewed-on: https://skia-review.googlesource.com/126581
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Adrienne Walker <enne@chromium.org>

TBR=bsalomon@google.com,enne@chromium.org

Change-Id: I3b35bf65a7b78d2fe16d7c2bcd0e4b3f9bb7fdff
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium: 829614
Reviewed-on: https://skia-review.googlesource.com/127303
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index efb0b3b..5c8ab96 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -1608,11 +1608,9 @@
     // Also, force us to only use the software path renderer, so we really stress-test the threaded
     // version of that code.
     GrContextOptions contextOptions = this->baseContextOptions();
-#if SK_SUPPORT_GPU
     contextOptions.fGpuPathRenderers = GpuPathRenderers::kNone;
-    contextOptions.fExecutor = fExecutor.get();
-#endif
 
+    contextOptions.fExecutor = fExecutor.get();
     Error err = this->onDraw(src, dst, wStream, log, contextOptions);
     if (!err.isEmpty() || !dst) {
         return err;
@@ -1621,9 +1619,7 @@
     SkBitmap reference;
     SkString refLog;
     SkDynamicMemoryWStream refStream;
-#if SK_SUPPORT_GPU
     contextOptions.fExecutor = nullptr;
-#endif
     Error refErr = this->onDraw(src, &reference, &refStream, &refLog, contextOptions);
     if (!refErr.isEmpty()) {
         return refErr;