Revert of Add flipped gradient branch to two point conical gradient (https://codereview.chromium.org/227623004/)

Reason for revert:
Breaking all CompareGMs

Original issue's description:
> Add flipped gradient branch to two point conical gradient
>
> BUG=skia:
>
> Committed: http://code.google.com/p/skia/source/detail?r=14235

R=bsalomon@google.com, mtklein@google.com
TBR=bsalomon@google.com, mtklein@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Author: egdaniel@google.com

Review URL: https://codereview.chromium.org/239993006

git-svn-id: http://skia.googlecode.com/svn/trunk@14236 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/gradients/SkTwoPointConicalGradient.h b/src/effects/gradients/SkTwoPointConicalGradient.h
index 80aa6fa..4c04917 100644
--- a/src/effects/gradients/SkTwoPointConicalGradient.h
+++ b/src/effects/gradients/SkTwoPointConicalGradient.h
@@ -25,11 +25,9 @@
     float   fA;
     float   fRadius2;
     float   fRDR;
-    bool    fFlipped;
 
     void init(const SkPoint& center0, SkScalar rad0,
-              const SkPoint& center1, SkScalar rad1,
-              bool flipped);
+              const SkPoint& center1, SkScalar rad1);
 
     static bool DontDrawT(SkFixed t) {
         return kDontDrawT == (uint32_t)t;
@@ -44,7 +42,7 @@
 public:
     SkTwoPointConicalGradient(const SkPoint& start, SkScalar startRadius,
                               const SkPoint& end, SkScalar endRadius,
-                              bool flippedGrad, const Descriptor&);
+                              const Descriptor&);
 
 
     virtual SkShader::Context* createContext(const SkBitmap&, const SkPaint&, const SkMatrix&,
@@ -78,7 +76,6 @@
     const SkPoint& getStartCenter() const { return fCenter1; }
     const SkPoint& getEndCenter() const { return fCenter2; }
     SkScalar getEndRadius() const { return fRadius2; }
-    bool isFlippedGrad() const { return fFlippedGrad; }
 
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTwoPointConicalGradient)
@@ -88,11 +85,10 @@
     virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE;
 
 private:
-    SkPoint fCenter1;
-    SkPoint fCenter2;
-    SkScalar fRadius1;
-    SkScalar fRadius2;
-    bool fFlippedGrad;
+    const SkPoint fCenter1;
+    const SkPoint fCenter2;
+    const SkScalar fRadius1;
+    const SkScalar fRadius2;
 
     typedef SkGradientShaderBase INHERITED;
 };