[MIPS] Remove obsolete MacroAssembler::FlushICache.

src/mips/macro-assembler-mips.h

Index: src/mips/macro-assembler-mips.h
diff --git a/src/mips/macro-assembler-mips.h b/src/mips/macro-assembler-mips.h
index 96eb9b4105d3b2740dbb722b8753539de0bbf1a1..4b7e37b800fef8f0fd0e474df79c041ae1a2bf8f 100644
--- a/src/mips/macro-assembler-mips.h
+++ b/src/mips/macro-assembler-mips.h
@@ -768,11 +768,6 @@ class MacroAssembler: public Assembler {
   // into register dst.
   void LoadFromSafepointRegisterSlot(Register dst, Register src);
 
-  // Flush the I-cache from asm code. You should use CpuFeatures::FlushICache
-  // from C.
-  // Does not handle errors.
-  void FlushICache(Register address, unsigned instructions);
-
   // MIPS32 R2 instruction macro.
   void Ins(Register rt, Register rs, uint16_t pos, uint16_t size);
   void Ext(Register rt, Register rs, uint16_t pos, uint16_t size);