Remove separate cache for clip mask textures

gyp/gpu.gypi

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 # Include this gypi to include all 'gpu' files
 # The parent gyp/gypi file must define
 #       'skia_src_path'     e.g. skia/trunk/src
 #       'skia_include_path' e.g. skia/trunk/include
 #
 # The skia build defines these in common_variables.gypi
@@ skipping 60 matching lines @@
       '<(skia_src_path)/gpu/GrBatchFlushState.h',
       '<(skia_src_path)/gpu/GrBatchTest.cpp',
       '<(skia_src_path)/gpu/GrBatchTest.h',
       '<(skia_src_path)/gpu/GrBlend.cpp',
       '<(skia_src_path)/gpu/GrBlurUtils.cpp',
       '<(skia_src_path)/gpu/GrBlurUtils.h',
       '<(skia_src_path)/gpu/GrBufferAllocPool.cpp',
       '<(skia_src_path)/gpu/GrBufferAllocPool.h',
       '<(skia_src_path)/gpu/GrCaps.cpp',
       '<(skia_src_path)/gpu/GrClip.cpp',
-      '<(skia_src_path)/gpu/GrClipMaskCache.h',
-      '<(skia_src_path)/gpu/GrClipMaskCache.cpp',
       '<(skia_src_path)/gpu/GrClipMaskManager.h',
       '<(skia_src_path)/gpu/GrClipMaskManager.cpp',
       '<(skia_src_path)/gpu/GrContext.cpp',
       '<(skia_src_path)/gpu/GrCoordTransform.cpp',
       '<(skia_src_path)/gpu/GrDefaultGeoProcFactory.cpp',
       '<(skia_src_path)/gpu/GrDefaultGeoProcFactory.h',
       '<(skia_src_path)/gpu/GrDrawContext.cpp',
       '<(skia_src_path)/gpu/GrDrawTarget.cpp',
       '<(skia_src_path)/gpu/GrDrawTarget.h',
       '<(skia_src_path)/gpu/GrFontScaler.cpp',
@@ skipping 356 matching lines @@
       '<(skia_src_path)/gpu/gl/debug/SkDebugGLContext.cpp',
       '<(skia_src_path)/gpu/gl/debug/SkDebugGLContext.h',
     ],
     'skgpu_null_gl_sources': [
       '<(skia_src_path)/gpu/gl/GrGLCreateNullInterface.cpp',
       '<(skia_src_path)/gpu/gl/SkNullGLContext.cpp',
       '<(skia_include_path)/gpu/gl/SkNullGLContext.h',
     ],
   },
 }