No longer use scratch textures on ARM devices

src/gpu/gl/GrGLCaps.cpp

Index: src/gpu/gl/GrGLCaps.cpp
===================================================================
--- src/gpu/gl/GrGLCaps.cpp	(revision 12000)
+++ src/gpu/gl/GrGLCaps.cpp	(working copy)
@@ -306,16 +306,7 @@
                             ctxInfo.hasExtension("GL_NV_path_rendering");
 
     fDstReadInShaderSupport = kNone_FBFetchType != fFBFetchType;
-
-#if 0
-    // This has to be temporarily disabled. On Android it causes the texture
-    // usage to become front loaded and the OS kills the process. It can
-    // be re-enabled once the more dynamic (ref-driven) cache clearing
-    // system is in place.
     fReuseScratchTextures = kARM_GrGLVendor != ctxInfo.vendor();
-#else
-    fReuseScratchTextures = true;
-#endif
 
     // Enable supported shader-related caps
     if (kDesktop_GrGLBinding == binding) {