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

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index 8c0a15a384896ca0c045cbea1bf1c5a5ea5c8889..030a634ce93b614ada27cc52764ae3581199f5d6 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -4602,15 +4602,6 @@
 }
 
 
-void MacroAssembler::BranchIfNotBuiltin(Register function, Register temp,
-                                        BuiltinFunctionId id, Label* miss) {
-  DCHECK(!temp.is(at));
-  lw(temp, FieldMemOperand(function, JSFunction::kSharedFunctionInfoOffset));
-  lw(temp, FieldMemOperand(temp, SharedFunctionInfo::kFunctionDataOffset));
-  Branch(miss, ne, temp, Operand(Smi::FromInt(id)));
-}
-
-
 void MacroAssembler::SetCounter(StatsCounter* counter, int value,
                                 Register scratch1, Register scratch2) {
   if (FLAG_native_code_counters && counter->Enabled()) {