remove older version of cubic->coeff

src/core/SkGeometry.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGeometry.h"
 #include "SkMatrix.h"
 #include "SkNx.h"
@@ skipping 323 matching lines @@
     dst[0] = src[0];
     dst[1] = to_point(s0 + (s1 - s0) * scale);
     dst[2] = to_point(s2 + (s1 - s2) * scale);
     dst[3] = src[2];
 }
 
 //////////////////////////////////////////////////////////////////////////////
 ///// CUBICS // CUBICS // CUBICS // CUBICS // CUBICS // CUBICS // CUBICS /////
 //////////////////////////////////////////////////////////////////////////////
 
-static void get_cubic_coeff(const SkScalar pt[], SkScalar coeff[4]) {
-    coeff[0] = pt[6] + 3*(pt[2] - pt[4]) - pt[0];
-    coeff[1] = 3*(pt[4] - pt[2] - pt[2] + pt[0]);
-    coeff[2] = 3*(pt[2] - pt[0]);
-    coeff[3] = pt[0];
-}
-
-void SkGetCubicCoeff(const SkPoint pts[4], SkScalar cx[4], SkScalar cy[4]) {
-    SkASSERT(pts);
-
-    if (cx) {
-        get_cubic_coeff(&pts[0].fX, cx);
-    }
-    if (cy) {
-        get_cubic_coeff(&pts[0].fY, cy);
-    }
-}
-
 static SkScalar eval_cubic(const SkScalar src[], SkScalar t) {
     SkASSERT(src);
     SkASSERT(t >= 0 && t <= SK_Scalar1);
 
     if (t == 0) {
         return src[0];
     }
 
 #ifdef DIRECT_EVAL_OF_POLYNOMIALS
     SkScalar D = src[0];
@@ skipping 1196 matching lines @@
         matrix.preScale(SK_Scalar1, -SK_Scalar1);
     }
     if (userMatrix) {
         matrix.postConcat(*userMatrix);
     }
     for (int i = 0; i < conicCount; ++i) {
         matrix.mapPoints(dst[i].fPts, 3);
     }
     return conicCount;
 }