Revert of Add getReducedClipStack to lua canvas (https://codereview.chromium.org/180283004/)

Reason for revert:
breaking a bunch of builds

Original issue's description:
> Add getReducedClipStack to lua canvas
>
> Committed: http://code.google.com/p/skia/source/detail?r=13594

R=reed@google.com
TBR=reed@google.com
NOTREECHECKS=true
NOTRY=true

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/181653004

git-svn-id: http://skia.googlecode.com/svn/trunk@13597 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/utils/SkLua.h b/include/utils/SkLua.h
index 2f29343..f67502a 100644
--- a/include/utils/SkLua.h
+++ b/include/utils/SkLua.h
@@ -8,7 +8,6 @@
 #ifndef SkLua_DEFINED
 #define SkLua_DEFINED
 
-#include "SkClipStack.h"
 #include "SkColor.h"
 #include "SkScalar.h"
 #include "SkString.h"
@@ -16,6 +15,7 @@
 struct lua_State;
 
 class SkCanvas;
+class SkClipStack;
 class SkMatrix;
 class SkPaint;
 class SkPath;
@@ -55,10 +55,6 @@
     void pushPath(const SkPath&, const char tableKey[] = NULL);
     void pushCanvas(SkCanvas*, const char tableKey[] = NULL);
     void pushClipStack(const SkClipStack&, const char tableKey[] = NULL);
-    void pushClipStackElement(const SkClipStack::Element& element, const char tableKey[] = NULL);
-
-    // This SkCanvas lua methods is declared here to benefit from SkLua's friendship with SkCanvas.
-    static int lcanvas_getReducedClipStack(lua_State* L);
 
 private:
     lua_State*  fL;