comment out SkDebugf (only needed for local testing)

tests/ClampRangeTest.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 "SkRandom.h"
 #include "Test.h"
 #include "gradients/SkClampRange.h"
@@ skipping 38 matching lines @@
 static void slow_check(const SkClampRange& range,
                        SkFixed fx, SkFixed dx, int count) {
     SkASSERT(range.fCount0 + range.fCount1 + range.fCount2 == count);
 
     for (int i = 0; i < range.fCount0; i++) {
         int v = classify_value(fx, V0, V1);
         R_ASSERT(v == range.fV0);
         fx += dx;
     }
     if (range.fCount1 > 0 && fx != range.fFx1) {
-        SkDebugf("%x %x\n", fx, range.fFx1);
+//        SkDebugf("%x %x\n", fx, range.fFx1);
         R_ASSERT(false); // bad fFx1
         return;
     }
     for (int i = 0; i < range.fCount1; i++) {
         R_ASSERT(fx >= 0 && fx <= 0xFFFF);
         fx += dx;
     }
     for (int i = 0; i < range.fCount2; i++) {
         int v = classify_value(fx, V0, V1);
         R_ASSERT(v == range.fV1);
@@ skipping 40 matching lines @@
     }
 
     // test overflow cases
     for (int i = 0; i < 100000; i++) {
         SkFixed fx = rand.nextS();
         SkFixed dx = rand.nextS();
         int count = rand.nextU() % 1000 + 1;
         test_range(fx, dx, count);
     }
 }