Revert of Speeup hairline curves (quads and cubics)

src/core/SkGeometry.cpp

Index: src/core/SkGeometry.cpp
diff --git a/src/core/SkGeometry.cpp b/src/core/SkGeometry.cpp
index 59796154252dac1f7494591f281fa9da02b3a5a4..50af22de37d1acc968676bd581f90fe9cf5696b5 100644
--- a/src/core/SkGeometry.cpp
+++ b/src/core/SkGeometry.cpp
@@ -9,7 +9,6 @@
 #include "SkMatrix.h"
 #include "SkNx.h"
 
-#if 0
 static Sk2s from_point(const SkPoint& point) {
     return Sk2s::Load(&point.fX);
 }
@@ -19,7 +18,6 @@
     x.store(&point.fX);
     return point;
 }
-#endif
 
 static SkVector to_vector(const Sk2s& x) {
     SkVector vector;
@@ -135,18 +133,6 @@
     SkScalar B = src[2] - src[0];
 
     return 2 * SkScalarMulAdd(A, t, B);
-}
-
-void SkQuadToCoeff(const SkPoint pts[3], SkPoint coeff[3]) {
-    Sk2s p0 = from_point(pts[0]);
-    Sk2s p1 = from_point(pts[1]);
-    Sk2s p2 = from_point(pts[2]);
-
-    Sk2s p1minus2 = p1 - p0;
-
-    coeff[0] = to_point(p2 - p1 - p1 + p0);     // A * t^2
-    coeff[1] = to_point(p1minus2 + p1minus2);   // B * t
-    coeff[2] = pts[0];                          // C
 }
 
 void SkEvalQuadAt(const SkPoint src[3], SkScalar t, SkPoint* pt, SkVector* tangent) {
@@ -464,26 +450,6 @@
     dst[4] = to_point(bcd);
     dst[5] = to_point(cd);
     dst[6] = src[3];
-}
-
-void SkCubicToCoeff(const SkPoint pts[4], SkPoint coeff[4]) {
-    Sk2s p0 = from_point(pts[0]);
-    Sk2s p1 = from_point(pts[1]);
-    Sk2s p2 = from_point(pts[2]);
-    Sk2s p3 = from_point(pts[3]);
-
-    const Sk2s three(3);
-    Sk2s p1minusp2 = p1 - p2;
-
-    Sk2s D = p0;
-    Sk2s A = p3 + three * p1minusp2 - D;
-    Sk2s B = three * (D - p1minusp2 - p1);
-    Sk2s C = three * (p1 - D);
-
-    coeff[0] = to_point(A);
-    coeff[1] = to_point(B);
-    coeff[2] = to_point(C);
-    coeff[3] = to_point(D);
 }
 
 /*  http://code.google.com/p/skia/issues/detail?id=32