Revert "IWYU for some test files starting with 'C'."

This reverts commit 1a462bd0fe6fb3cd8d7aa7ad1d8290e764ac79e4.

Reason for revert: Broke android. Need to run android bot for these.

Original change's description:
> IWYU for some test files starting with 'C'.
> 
> Change-Id: I9a9596f7a941cdd8f01e055965c70a4b24438499
> Reviewed-on: https://skia-review.googlesource.com/113746
> Reviewed-by: Herb Derby <herb@google.com>
> Commit-Queue: Ben Wagner <bungeman@google.com>

TBR=bungeman@google.com,herb@google.com

Change-Id: Ic63c2fcc7457e442e9b29a9ccd429927e24e3b77
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/113841
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
diff --git a/tests/ClearTest.cpp b/tests/ClearTest.cpp
index 1110fdd..429b9e1 100644
--- a/tests/ClearTest.cpp
+++ b/tests/ClearTest.cpp
@@ -5,29 +5,14 @@
  * found in the LICENSE file.
  */
 
-#include "SkTypes.h"
-
-#if SK_SUPPORT_GPU
-#include "GrColor.h"
-#include "GrContext.h"
-#include "GrContextFactory.h"
-#include "GrContextOptions.h"
-#include "GrContextPriv.h"
-#include "GrRenderTargetContext.h"
-#include "GrTypes.h"
-#include "SkBitmap.h"
-#include "SkCanvas.h"
-#include "SkColor.h"
-#include "SkColorSpace.h"
-#include "SkImageInfo.h"
-#include "SkPaint.h"
-#include "SkRect.h"
-#include "SkRefCnt.h"
-#include "SkSurface.h"
 #include "Test.h"
 
-#include <cstring>
-#include <memory>
+#if SK_SUPPORT_GPU
+#include "GrContext.h"
+#include "GrRenderTargetContext.h"
+
+#include "SkCanvas.h"
+#include "SkSurface.h"
 
 static bool check_rect(GrRenderTargetContext* rtc, const SkIRect& rect, uint32_t expectedValue,
                        uint32_t* actualValue, int* failX, int* failY) {