Remove SkGraphics::Term

It's been a no-op for 6 years.

Change-Id: Id5e4b21ac806eb68879b217084006cb62cedfe7a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/494636
Auto-Submit: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/include/core/SkGraphics.h b/include/core/SkGraphics.h
index fc1e47c..b68bb78 100644
--- a/include/core/SkGraphics.h
+++ b/include/core/SkGraphics.h
@@ -23,9 +23,6 @@
      */
     static void Init();
 
-    // We're in the middle of cleaning this up.
-    static void Term() {}
-
     /**
      *  Return the max number of bytes that should be used by the font cache.
      *  If the cache needs to allocate more, it will purge previous entries.