remove SK_SCALAR_IS_[FLOAT,FIXED] and assume floats

To keep the CL (slightly) managable, this does not make any changes to
existing macros (e.g. SkScalarMul). Just tackling #ifdef constructs this
time around.

BUG=
R=bsalomon@google.com, caryclark@google.com

Review URL: https://codereview.chromium.org/117053002

git-svn-id: http://skia.googlecode.com/svn/trunk@12712 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/core/SkStrokerPriv.cpp b/src/core/SkStrokerPriv.cpp
index 269ebd3..ad9c0c4 100644
--- a/src/core/SkStrokerPriv.cpp
+++ b/src/core/SkStrokerPriv.cpp
@@ -153,11 +153,7 @@
     }
 }
 
-#ifdef SK_SCALAR_IS_FLOAT
-    #define kOneOverSqrt2   (0.707106781f)
-#else
-    #define kOneOverSqrt2   (46341)
-#endif
+#define kOneOverSqrt2   (0.707106781f)
 
 static void MiterJoiner(SkPath* outer, SkPath* inner, const SkVector& beforeUnitNormal,
                         const SkPoint& pivot, const SkVector& afterUnitNormal,