remove SkFloatToScalar macro

BUG=
R=reed@google.com, djsollen@google.com

Author: caryclark@google.com

Review URL: https://codereview.chromium.org/85463005

git-svn-id: http://skia.googlecode.com/svn/trunk@12385 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/ports/SkFontHost_mac.cpp b/src/ports/SkFontHost_mac.cpp
index 1d2f1fa..3c1a274 100755
--- a/src/ports/SkFontHost_mac.cpp
+++ b/src/ports/SkFontHost_mac.cpp
@@ -273,7 +273,7 @@
 
 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 @@
     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 @@
         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: