Remove keyed load "force generic" miss case.

src/mips/ic-mips.cc

Index: src/mips/ic-mips.cc
diff --git a/src/mips/ic-mips.cc b/src/mips/ic-mips.cc
index 0cbd0eae7c11dd18ed60c8a4f30a3547d7f37c1b..98fb2f7b469d40d1bd49f950e4e6c2b54a1c087e 100644
--- a/src/mips/ic-mips.cc
+++ b/src/mips/ic-mips.cc
@@ -826,7 +826,7 @@ void KeyedLoadIC::GenerateNonStrictArguments(MacroAssembler* masm) {
   __ Ret(USE_DELAY_SLOT);
   __ mov(v0, a2);
   __ bind(&slow);
-  GenerateMiss(masm, MISS);
+  GenerateMiss(masm);
 }
 
 
@@ -891,7 +891,7 @@ void KeyedCallIC::GenerateNonStrictArguments(MacroAssembler* masm,
 }
 
 
-void KeyedLoadIC::GenerateMiss(MacroAssembler* masm, ICMissMode miss_mode) {
+void KeyedLoadIC::GenerateMiss(MacroAssembler* masm) {
   // ---------- S t a t e --------------
   //  -- ra     : return address
   //  -- a0     : key
@@ -904,9 +904,8 @@ void KeyedLoadIC::GenerateMiss(MacroAssembler* masm, ICMissMode miss_mode) {
   __ Push(a1, a0);
 
   // Perform tail call to the entry.
-  ExternalReference ref = miss_mode == MISS_FORCE_GENERIC
-      ? ExternalReference(IC_Utility(kKeyedLoadIC_MissForceGeneric), isolate)
-      : ExternalReference(IC_Utility(kKeyedLoadIC_Miss), isolate);
+  ExternalReference ref =
+      ExternalReference(IC_Utility(kKeyedLoadIC_Miss), isolate);
 
   __ TailCallExternalReference(ref, 2, 1);
 }
@@ -1131,7 +1130,7 @@ void KeyedLoadIC::GenerateString(MacroAssembler* masm) {
   char_at_generator.GenerateSlow(masm, call_helper);
 
   __ bind(&miss);
-  GenerateMiss(masm, MISS);
+  GenerateMiss(masm);
 }
 
 
@@ -1453,7 +1452,7 @@ void KeyedLoadIC::GenerateIndexedInterceptor(MacroAssembler* masm) {
        IC_Utility(kKeyedLoadPropertyWithInterceptor), masm->isolate()), 2, 1);
 
   __ bind(&slow);
-  GenerateMiss(masm, MISS);
+  GenerateMiss(masm);
 }