remove SK_SCALAR_IS_[FLOAT,FIXED] and assume floats

src/core/SkScan_Hairline.cpp

Index: src/core/SkScan_Hairline.cpp
diff --git a/src/core/SkScan_Hairline.cpp b/src/core/SkScan_Hairline.cpp
index f440d32613da8cb53af85dd62a2b3c83a2bbe4eb..3b0f152a4fef4570cbb8f065720c833882952f35 100644
--- a/src/core/SkScan_Hairline.cpp
+++ b/src/core/SkScan_Hairline.cpp
@@ -47,7 +47,6 @@ void SkScan::HairLineRgn(const SkPoint& pt0, const SkPoint& pt1,
     SkIRect clipR, ptsR;
     SkPoint pts[2] = { pt0, pt1 };
 
-#ifdef SK_SCALAR_IS_FLOAT
     // We have to pre-clip the line to fit in a SkFixed, so we just chop
     // the line. TODO find a way to actually draw beyond that range.
     {
@@ -58,7 +57,6 @@ void SkScan::HairLineRgn(const SkPoint& pt0, const SkPoint& pt1,
             return;
         }
     }
-#endif
 
     if (clip) {
         // Perform a clip in scalar space, so we catch huge values which might