remove dead code

BUG=skia:

Review URL: https://codereview.chromium.org/1016523002

include/effects/SkGradientShader.h

diff --git a/include/effects/SkGradientShader.h b/include/effects/SkGradientShader.h
index af88080..a5b4f29 100644
--- a/include/effects/SkGradientShader.h
+++ b/include/effects/SkGradientShader.h
@@ -53,15 +53,6 @@
         return CreateLinear(pts, colors, pos, count, mode, 0, NULL);
     }
 
-#ifdef SK_SUPPORT_LEGACY_GRADIENT_FACTORIES
-    static SkShader* CreateLinear(const SkPoint pts[2],
-                                  const SkColor colors[], const SkScalar pos[], int count,
-                                  SkShader::TileMode mode, void* /*ignored*/,
-                                  uint32_t flags, const SkMatrix* localMatrix) {
-        return CreateLinear(pts, colors, pos, count, mode, flags, localMatrix);
-    }
-#endif
-
     /** Returns a shader that generates a radial gradient given the center and radius.
         <p />
         CreateRadial returns a shader with a reference count of 1.
@@ -89,15 +80,6 @@
         return CreateRadial(center, radius, colors, pos, count, mode, 0, NULL);
     }
 
-#ifdef SK_SUPPORT_LEGACY_GRADIENT_FACTORIES
-    static SkShader* CreateRadial(const SkPoint& center, SkScalar radius,
-                                  const SkColor colors[], const SkScalar pos[], int count,
-                                  SkShader::TileMode mode, void* /*ignored*/,
-                                  uint32_t flags, const SkMatrix* localMatrix) {
-        return CreateRadial(center, radius, colors, pos, count, mode, flags, localMatrix);
-    }
-#endif
-
     /** Returns a shader that generates a radial gradient given the start position, start radius, end position and end radius.
         <p />
         CreateTwoPointRadial returns a shader with a reference count of 1.
@@ -131,17 +113,6 @@
                                     0, NULL);
     }
 
-#ifdef SK_SUPPORT_LEGACY_GRADIENT_FACTORIES
-    static SkShader* CreateTwoPointRadial(const SkPoint& start, SkScalar startRadius,
-                                          const SkPoint& end, SkScalar endRadius,
-                                          const SkColor colors[], const SkScalar pos[], int count,
-                                          SkShader::TileMode mode, void* /*ignored*/,
-                                          uint32_t flags, const SkMatrix* localMatrix) {
-        return CreateTwoPointRadial(start, startRadius, end, endRadius, colors, pos, count, mode,
-                                    flags, localMatrix);
-    }
-#endif
-
     /**
      *  Returns a shader that generates a conical gradient given two circles, or
      *  returns NULL if the inputs are invalid. The gradient interprets the
@@ -162,17 +133,6 @@
                                      0, NULL);
     }
 
-#ifdef SK_SUPPORT_LEGACY_GRADIENT_FACTORIES
-    static SkShader* CreateTwoPointConical(const SkPoint& start, SkScalar startRadius,
-                                           const SkPoint& end, SkScalar endRadius,
-                                           const SkColor colors[], const SkScalar pos[], int count,
-                                           SkShader::TileMode mode, void* /*ignored*/,
-                                           uint32_t flags, const SkMatrix* localMatrix) {
-        return CreateTwoPointConical(start, startRadius, end, endRadius, colors, pos, count, mode,
-                                    flags, localMatrix);
-    }
-#endif
-
     /** Returns a shader that generates a sweep gradient given a center.
         <p />
         CreateSweep returns a shader with a reference count of 1.
@@ -197,15 +157,6 @@
         return CreateSweep(cx, cy, colors, pos, count, 0, NULL);
     }
 
-#ifdef SK_SUPPORT_LEGACY_GRADIENT_FACTORIES
-    static SkShader* CreateSweep(SkScalar cx, SkScalar cy,
-                                 const SkColor colors[], const SkScalar pos[], int count,
-                                 void* /*ignored*/,
-                                 uint32_t flags, const SkMatrix* localMatrix) {
-        return CreateSweep(cx, cy, colors, pos, count, flags, localMatrix);
-    }
-#endif
-
     SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
 };