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/core/SkRecorder.cpp b/src/core/SkRecorder.cpp
index 8581257..4c02a35 100644
--- a/src/core/SkRecorder.cpp
+++ b/src/core/SkRecorder.cpp
@@ -206,9 +206,9 @@
                          indexCount);
 }
 
-void SkRecorder::willSave(SkCanvas::SaveFlags flags) {
-    APPEND(Save, flags);
-    INHERITED(willSave, flags);
+void SkRecorder::willSave() {
+    APPEND(Save);
+    INHERITED(willSave);
 }
 
 SkCanvas::SaveLayerStrategy SkRecorder::willSaveLayer(const SkRect* bounds,