remove SK_SCALAR_IS_[FLOAT,FIXED] and assume floats

tests/InfRectTest.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Test.h"
 #include "TestClassDef.h"
 #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;
     SkIPoint fCenter;
 };
 
 static void test_center(skiatest::Reporter* reporter) {
     static const RectCenter gData[] = {
         { { 0, 0, 0, 0 }, { 0, 0 } },
         { { 0, 0, 1, 1 }, { 0, 0 } },
@@ skipping 24 matching lines @@
 static void check_invalid(skiatest::Reporter* reporter,
                           SkScalar l, SkScalar t, SkScalar r, SkScalar b) {
     SkRect rect;
     rect.set(l, t, r, b);
     REPORTER_ASSERT(reporter, !rect.isFinite());
 }
 
 // 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);
 
     REPORTER_ASSERT(reporter, SkRect::MakeEmpty().isFinite());
 
     SkRect rect = SkRect::MakeXYWH(small, small, big, big);
     REPORTER_ASSERT(reporter, rect.isFinite());
 
     const SkScalar invalid[] = { nan, inf, -inf };
     for (size_t i = 0; i < SK_ARRAY_COUNT(invalid); ++i) {
         check_invalid(reporter, small, small, big, invalid[i]);
         check_invalid(reporter, small, small, invalid[i], big);
         check_invalid(reporter, small, invalid[i], big, big);
         check_invalid(reporter, invalid[i], small, big, big);
     }
 
     test_center(reporter);
 }
 
 // need tests for SkStrSearch