Bug 669522: Removed unused function bool IsFloatInteger(float) r=joe

gfx/src/nsRect.cpp

@@ -47,13 +47,6 @@ PR_STATIC_ASSERT((NS_SIDE_TOP == 0) && (NS_SIDE_RIGHT == 1) && (NS_SIDE_BOTTOM =
 /* static */
 const nsIntRect nsIntRect::kMaxSizedIntRect(0, 0, INT_MAX, INT_MAX);
 
-#ifdef DEBUG
-static bool IsFloatInteger(float aFloat)
-{
-  return fabs(aFloat - NS_round(aFloat)) < 1e-6;
-}
-#endif
-
 #ifdef DEBUG
 // Diagnostics