Cleanup: Remove unused InstallNewHandler() function from SkGraphics.

BUG=None
TEST=None
R=bsalomon@google.com

Review URL: https://codereview.chromium.org/701813006

include/core/SkGraphics.h

@@ -1,4 +1,3 @@
-
 /*
  * Copyright 2006 The Android Open Source Project
  *
@@ -6,7 +5,6 @@
  * found in the LICENSE file.
  */
 
-
 #ifndef SkGraphics_DEFINED
 #define SkGraphics_DEFINED
 
@@ -142,13 +140,6 @@ public:
      *  global font cache.
      */
     static void SetTLSFontCacheLimit(size_t bytes);
-
-private:
-    /** This is automatically called by SkGraphics::Init(), and must be
-        implemented by the host OS. This allows the host OS to register a callback
-        with the C++ runtime to call SkGraphics::FreeCaches()
-    */
-    static void InstallNewHandler();
 };
 
 class SkAutoGraphics {