[ic] Remove unnecessary access rights checks from the IC handlers.

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 65c90bec312a21da5326907adcfa92272f3c7c92..ade5393f2e01f72b93a8c3cc52442bfeaae7639d 100644
--- a/src/mips64/macro-assembler-mips64.h
+++ b/src/mips64/macro-assembler-mips64.h
@@ -527,13 +527,6 @@ class MacroAssembler: public Assembler {
   // ---------------------------------------------------------------------------
   // Inline caching support.
 
-  // Generate code for checking access rights - used for security checks
-  // on access to global objects across environments. The holder register
-  // is left untouched, whereas both scratch registers are clobbered.
-  void CheckAccessGlobalProxy(Register holder_reg,
-                              Register scratch,
-                              Label* miss);
-
   void GetNumberHash(Register reg0, Register scratch);
 
   inline void MarkCode(NopMarkerTypes type) {