Remove uses of result size in TailCallRuntime and friends

src/x87/macro-assembler-x87.cc

Index: src/x87/macro-assembler-x87.cc
diff --git a/src/x87/macro-assembler-x87.cc b/src/x87/macro-assembler-x87.cc
index b297e316f252a0158f87327c3855a3f152b2e317..72f4f0aeb881e49fe4c233e67510082dd6ce3c5e 100644
--- a/src/x87/macro-assembler-x87.cc
+++ b/src/x87/macro-assembler-x87.cc
@@ -1866,8 +1866,7 @@ void MacroAssembler::CallExternalReference(ExternalReference ref,
 
 
 void MacroAssembler::TailCallExternalReference(const ExternalReference& ext,
-                                               int num_arguments,
-                                               int result_size) {
+                                               int num_arguments) {
   // TODO(1236192): Most runtime routines don't need the number of
   // arguments passed in because it is constant. At some point we
   // should remove this need and make the runtime routine entry code
@@ -1878,11 +1877,8 @@ void MacroAssembler::TailCallExternalReference(const ExternalReference& ext,
 
 
 void MacroAssembler::TailCallRuntime(Runtime::FunctionId fid,
-                                     int num_arguments,
-                                     int result_size) {
-  TailCallExternalReference(ExternalReference(fid, isolate()),
-                            num_arguments,
-                            result_size);
+                                     int num_arguments) {
+  TailCallExternalReference(ExternalReference(fid, isolate()), num_arguments);
 }