Revert 11247, 11250, 11251, 11257, and 11279 to unblock DEPS roll (https://codereview.chromium.org/24159002/)

11279 Sanitizing source files in Housekeeper-Nightly - https://code.google.com/p/skia/source/detail?r=11279
11257 Canary build fix - https://codereview.chromium.org/23532068
11251 More warnings as errors fixes - https://code.google.com/p/skia/source/detail?r=11251
11250 Warnings as errors fix - https://code.google.com/p/skia/source/detail?r=11250
11247 Initial error handling code - https://chromiumcodereview.appspot.com/23021015



git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@11288 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/core.gypi b/core.gypi
index a25173d..6c00a56 100644
--- a/core.gypi
+++ b/core.gypi
@@ -164,7 +164,6 @@
         '<(skia_src_path)/core/SkScan_Antihair.cpp',
         '<(skia_src_path)/core/SkScan_Hairline.cpp',
         '<(skia_src_path)/core/SkScan_Path.cpp',
-        '<(skia_src_path)/core/SkValidatingReadBuffer.cpp',
         '<(skia_src_path)/core/SkShader.cpp',
         '<(skia_src_path)/core/SkSpriteBlitter_ARGB32.cpp',
         '<(skia_src_path)/core/SkSpriteBlitter_RGB16.cpp',