Revert of Collect type feedback on result of Math.[round|ceil|floor]

src/ia32/macro-assembler-ia32.cc

Index: src/ia32/macro-assembler-ia32.cc
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index 2aab2e68782bd29b8cc8611824f4a5ea7e10a2e6..4d599eef8d4186fbb1dfb7a780445ad8f8008a1b 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -2141,15 +2141,6 @@
 }
 
 
-void MacroAssembler::BranchIfNotBuiltin(Register function, Register temp,
-                                        BuiltinFunctionId id, Label* miss) {
-  mov(temp, FieldOperand(function, JSFunction::kSharedFunctionInfoOffset));
-  mov(temp, FieldOperand(temp, SharedFunctionInfo::kFunctionDataOffset));
-  cmp(temp, Immediate(Smi::FromInt(id)));
-  j(not_equal, miss);
-}
-
-
 void MacroAssembler::LoadContext(Register dst, int context_chain_length) {
   if (context_chain_length > 0) {
     // Move up the chain of contexts to the context containing the slot.