remove SkFloatToScalar macro

src/ports/SkFontHost_mac.cpp

Index: src/ports/SkFontHost_mac.cpp
diff --git a/src/ports/SkFontHost_mac.cpp b/src/ports/SkFontHost_mac.cpp
index 1d2f1fa78b1ce3694e572d19ae0410ade86ae32a..3c1a274887728feebe9570ce5f4c0ce56eae247f 100755
--- a/src/ports/SkFontHost_mac.cpp
+++ b/src/ports/SkFontHost_mac.cpp
@@ -273,7 +273,7 @@ static CGFloat ScalarToCG(SkScalar scalar) {
 
 static SkScalar CGToScalar(CGFloat cgFloat) {
     if (sizeof(CGFloat) == sizeof(float)) {
-        return SkFloatToScalar(cgFloat);
+        return cgFloat;
     } else {
         SkASSERT(sizeof(CGFloat) == sizeof(double));
         return SkDoubleToScalar(cgFloat);
@@ -1075,7 +1075,7 @@ static void build_power_table(uint8_t table[], float ee) {
     for (int i = 0; i < 256; i++) {
         float x = i / 255.f;
         x = sk_float_pow(x, ee);
-        int xx = SkScalarRoundToInt(SkFloatToScalar(x * 255));
+        int xx = SkScalarRoundToInt(x * 255);
         table[i] = SkToU8(xx);
     }
 }
@@ -1325,7 +1325,7 @@ void SkScalerContext_Mac::generatePath(const SkGlyph& glyph, SkPath* path) {
         fRec.getSingleMatrix(&m);
 
         // start out by assuming that we want no hining in X and Y
-        scaleX = scaleY = SkFloatToScalar(kScaleForSubPixelPositionHinting);
+        scaleX = scaleY = kScaleForSubPixelPositionHinting;
         // now see if we need to restore hinting for axis-aligned baselines
         switch (SkComputeAxisAlignmentForHText(m)) {
             case kX_SkAxisAlignment: