remove SK_SCALAR_IS_[FLOAT,FIXED] and assume floats

tests/InfRectTest.cpp

Index: tests/InfRectTest.cpp
diff --git a/tests/InfRectTest.cpp b/tests/InfRectTest.cpp
index 3d964bdccf4b9f40380a5975d9f609e9366ca066..674cf5b80245326b4ecbf4450cfaf7cb57811648 100644
--- a/tests/InfRectTest.cpp
+++ b/tests/InfRectTest.cpp
@@ -10,11 +10,9 @@
 #include "SkRandom.h"
 #include "SkRect.h"
 
-#ifdef SK_SCALAR_IS_FLOAT
 static float make_zero() {
     return sk_float_sin(0);
 }
-#endif
 
 struct RectCenter {
     SkIRect  fRect;
@@ -59,14 +57,9 @@ static void check_invalid(skiatest::Reporter* reporter,
 // Tests that isFinite() will reject any rect with +/-inf values
 // as one of its coordinates.
 DEF_TEST(InfRect, reporter) {
-#ifdef SK_SCALAR_IS_FLOAT
     float inf = 1 / make_zero();    // infinity
     float nan = inf * 0;
     SkASSERT(!(nan == nan));
-#else
-    SkFixed inf = SK_FixedNaN;
-    SkFixed nan = SK_FixedNaN;
-#endif
     SkScalar small = SkIntToScalar(10);
     SkScalar big = SkIntToScalar(100);