No need to define SK_SCALAR_IS_FLOAT

This is already the default value and is the only supported case.

Review-Url: https://codereview.chromium.org/2657453005
diff --git a/skia/config/SkUserConfig.h b/skia/config/SkUserConfig.h
index f505c50..e09a235 100644
--- a/skia/config/SkUserConfig.h
+++ b/skia/config/SkUserConfig.h
@@ -127,9 +127,6 @@
 
 // ===== Begin Chrome-specific definitions =====
 
-#define SK_SCALAR_IS_FLOAT
-#undef SK_SCALAR_IS_FIXED
-
 #define SK_MSCALAR_IS_FLOAT
 #undef SK_MSCALAR_IS_DOUBLE