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

src/x87/macro-assembler-x87.h

Index: src/x87/macro-assembler-x87.h
diff --git a/src/x87/macro-assembler-x87.h b/src/x87/macro-assembler-x87.h
index 427b2b66bc3d3954c4bda951caa95bfbc0b603bf..a99450d94c69783e906b72140d7e6ed3e90e172e 100644
--- a/src/x87/macro-assembler-x87.h
+++ b/src/x87/macro-assembler-x87.h
@@ -588,12 +588,6 @@ 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, but the scratch register is clobbered.
-  void CheckAccessGlobalProxy(Register holder_reg, Register scratch1,
-                              Register scratch2, Label* miss);
-
   void GetNumberHash(Register r0, Register scratch);
 
   // ---------------------------------------------------------------------------