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/gm/gradient_matrix.cpp b/gm/gradient_matrix.cpp
index 508b3eb..d1d0e42 100644
--- a/gm/gradient_matrix.cpp
+++ b/gm/gradient_matrix.cpp
@@ -24,7 +24,7 @@
 };
 
 // These annoying defines are necessary, because the only other alternative
-// is to use SkIntToScalar(...) or SkFloatToScalar(...) everywhere.
+// is to use SkIntToScalar(...) everywhere.
 static const SkScalar sZero = 0;
 static const SkScalar sHalf = SK_ScalarHalf;
 static const SkScalar sOne = SK_Scalar1;