remoting: Move CGRectToSkIRect() to the only file where it's called

skia/ext/skia_utils_mac.mm

Index: skia/ext/skia_utils_mac.mm
diff --git a/skia/ext/skia_utils_mac.mm b/skia/ext/skia_utils_mac.mm
index d6394602985f3ed98b8c191181314e255fff8576..c45f335406c49e5dbe0528370d02141b6922b43b 100644
--- a/skia/ext/skia_utils_mac.mm
+++ b/skia/ext/skia_utils_mac.mm
@@ -136,16 +136,6 @@ CGAffineTransform SkMatrixToCGAffineTransform(const SkMatrix& matrix) {
                                matrix[SkMatrix::kMTransY]);
 }
 
-SkIRect CGRectToSkIRect(const CGRect& rect) {
-  SkIRect sk_rect = {
-    SkScalarRound(rect.origin.x),
-    SkScalarRound(rect.origin.y),
-    SkScalarRound(rect.origin.x + rect.size.width),
-    SkScalarRound(rect.origin.y + rect.size.height)
-  };
-  return sk_rect;
-}
-
 SkRect CGRectToSkRect(const CGRect& rect) {
   SkRect sk_rect = {
     rect.origin.x,