Reverting r10901 (Add unpremultiply support and GM)



git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@10909 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gmslides.gypi b/gmslides.gypi
index 24306fc..b2afc5e 100644
--- a/gmslides.gypi
+++ b/gmslides.gypi
@@ -13,7 +13,6 @@
     '../gm/bitmapcopy.cpp',
     '../gm/bitmapmatrix.cpp',
     '../gm/bitmapfilters.cpp',
-    '../gm/bitmappremul.cpp',
     '../gm/bitmaprect.cpp',
     '../gm/bitmaprecttest.cpp',
     '../gm/bitmapscroll.cpp',