Revert of Move SkGLContext and some GrGLInterface implementations to skgputest module (patchset #13 id:240001 of https://codereview.chromium.org/1815823002/ )

Reason for revert:
red bots

Original issue's description:
> Move SkGLContext and some GrGLInterface implementations to skgputest module
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1815823002
> CQ_EXTRA_TRYBOTS=client.skia.compile:Build-Ubuntu-GCC-x86_64-Release-CMake-Trybot,Build-Mac-Clang-x86_64-Release-CMake-Trybot
>
> Committed: https://skia.googlesource.com/skia/+/fe3456cb006110d045b26ff3f8681b893a757b58

TBR=jvanverth@google.com,bsalomon@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1845473004

1 files changed, 0 insertions, 42 deletions

diff --git a/tools/gpu/GrTest.h b/tools/gpu/GrTest.h
deleted file mode 100644
index 53aaac34e4..0000000000
--- a/tools/gpu/GrTest.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrTest_DEFINED
-#define GrTest_DEFINED
-
-#include "GrContext.h"
-#include "GrDrawTarget.h"
-#include "gl/GrGLContext.h"
-
-namespace GrTest {
-    /**
-     * Forces the GrContext to use a small atlas which only has room for one plot and will thus
-     * constantly be evicting entries
-     */
-    void SetupAlwaysEvictAtlas(GrContext*);
-};
-
-/** TODO Please do not use this if you can avoid it.  We are in the process of deleting it.
-    Allows a test to temporarily draw to a GrDrawTarget owned by a GrContext. Tests that use this
-    should be careful not to mix using the GrDrawTarget directly and drawing via SkCanvas or
-    GrContext. In the future this object may provide some guards to prevent this. */
-class GrTestTarget {
-public:
-    GrTestTarget() {};
-
-    void init(GrContext*, GrDrawTarget*, GrRenderTarget*);
-
-    GrDrawTarget* target() { return fDrawTarget.get(); }
-    GrResourceProvider* resourceProvider() { return fContext->resourceProvider(); }
-
-private:
-    SkAutoTUnref<GrContext>                 fContext;
-    SkAutoTUnref<GrDrawTarget>              fDrawTarget;
-    SkAutoTUnref<GrRenderTarget>            fRenderTarget;
-};
-
-#endif