remove (now unused) Sk64 -- just use int64_t

include/core/SkBitmap.h

Index: include/core/SkBitmap.h
diff --git a/include/core/SkBitmap.h b/include/core/SkBitmap.h
index 42d8811f76de68ba55eb4c73ee92b22f33e3608a..b8117bd76f3ea0d7efe67987177cbd877d0a5279 100644
--- a/include/core/SkBitmap.h
+++ b/include/core/SkBitmap.h
@@ -14,10 +14,6 @@
 #include "SkPoint.h"
 #include "SkRefCnt.h"
 
-#ifdef SK_SUPPORT_LEGACY_SK64
-    #include "Sk64.h"
-#endif
-
 struct SkIRect;
 struct SkRect;
 class SkPaint;
@@ -166,22 +162,6 @@ public:
         return ComputeSafeSize64((Config)fConfig, fWidth, fHeight, fRowBytes);
     }
 
-#ifdef SK_SUPPORT_LEGACY_SK64
-    SK_ATTR_DEPRECATED("use getSize64()")
-    Sk64 getSize64() const {
-        Sk64 size;
-        size.set64(this->computeSize64());
-        return size;
-    }
-
-    SK_ATTR_DEPRECATED("use getSafeSize64()")
-    Sk64 getSafeSize64() const {
-        Sk64 size;
-        size.set64(this->computeSafeSize64());
-        return size;
-    }
-#endif
-
     /** Returns true if this bitmap is marked as immutable, meaning that the
         contents of its pixels will not change for the lifetime of the bitmap.
     */