Remove uses of result size in TailCallRuntime and friends

src/ppc/macro-assembler-ppc.cc

Index: src/ppc/macro-assembler-ppc.cc
diff --git a/src/ppc/macro-assembler-ppc.cc b/src/ppc/macro-assembler-ppc.cc
index be596d9b9057100a02bec5fdd52a6d46c0a5ab2c..b34072293aac8e8928d3aab93475953bfef73d3b 100644
--- a/src/ppc/macro-assembler-ppc.cc
+++ b/src/ppc/macro-assembler-ppc.cc
@@ -2313,8 +2313,7 @@ void MacroAssembler::CallExternalReference(const ExternalReference& ext,
 
 
 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
@@ -2324,10 +2323,9 @@ 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);
+void MacroAssembler::TailCallRuntime(Runtime::FunctionId fid,
+                                     int num_arguments) {
+  TailCallExternalReference(ExternalReference(fid, isolate()), num_arguments);
 }