Remove uses of result size in TailCallRuntime and friends

src/mips64/macro-assembler-mips64.h

Index: src/mips64/macro-assembler-mips64.h
diff --git a/src/mips64/macro-assembler-mips64.h b/src/mips64/macro-assembler-mips64.h
index e685e2bd2ccaffbfa60878c4447a722565a6f29f..a8658141e2d282683007aa59c58222a1a235dfde 100644
--- a/src/mips64/macro-assembler-mips64.h
+++ b/src/mips64/macro-assembler-mips64.h
@@ -1376,13 +1376,10 @@ const Operand& rt = Operand(zero_reg), BranchDelaySlot bd = PROTECT
   // Like JumpToExternalReference, but also takes care of passing the number
   // of parameters.
   void TailCallExternalReference(const ExternalReference& ext,
-                                 int num_arguments,
-                                 int result_size);
+                                 int num_arguments);
 
   // Convenience function: tail call a runtime routine (jump).
-  void TailCallRuntime(Runtime::FunctionId fid,
-                       int num_arguments,
-                       int result_size);
+  void TailCallRuntime(Runtime::FunctionId fid, int num_arguments);
 
   int CalculateStackPassedWords(int num_reg_arguments,
                                 int num_double_arguments);