SaveFlags be-gone

Remove the deprecated save(SaveFlags), willSave(SaveFlags) and all
traces of kMatrix_SaveFlags/kClip_SaveFlag.

BUG=skia:2297
R=mtklein@google.com, reed@google.com, robertphillips@google.com

Review URL: https://codereview.chromium.org/340403003
diff --git a/src/utils/SkDumpCanvas.cpp b/src/utils/SkDumpCanvas.cpp
index 4dfed39..b12928f 100644
--- a/src/utils/SkDumpCanvas.cpp
+++ b/src/utils/SkDumpCanvas.cpp
@@ -192,9 +192,9 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
-void SkDumpCanvas::willSave(SaveFlags flags) {
-    this->dump(kSave_Verb, NULL, "save(0x%X)", flags);
-    this->INHERITED::willSave(flags);
+void SkDumpCanvas::willSave() {
+    this->dump(kSave_Verb, NULL, "save()");
+    this->INHERITED::willSave();
 }
 
 SkCanvas::SaveLayerStrategy SkDumpCanvas::willSaveLayer(const SkRect* bounds, const SkPaint* paint,