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

src/mips64/macro-assembler-mips64.cc

Index: src/mips64/macro-assembler-mips64.cc
diff --git a/src/mips64/macro-assembler-mips64.cc b/src/mips64/macro-assembler-mips64.cc
index 89ed2cd88a4f586ac00ab9fb19e9e320e00d4d03..0e7955de00d4be4d9b81802bc2ba5e8f6ab80f8b 100644
--- a/src/mips64/macro-assembler-mips64.cc
+++ b/src/mips64/macro-assembler-mips64.cc
@@ -4576,14 +4576,6 @@
 }
 
 
-void MacroAssembler::BranchIfNotBuiltin(Register function, Register temp,
-                                        BuiltinFunctionId id, Label* miss) {
-  ld(temp, FieldMemOperand(function, JSFunction::kSharedFunctionInfoOffset));
-  ld(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()) {