Cleanup ARM simulator Read/Write helpers

Change-Id: I24893d2db441282df8ac3267b0daf8f163e0edb5
Reviewed-on: https://chromium-review.googlesource.com/1177198Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55175}

src/arm/simulator-arm.h

@@ -276,18 +276,18 @@ class Simulator : public SimulatorBase {
   inline void WriteB(int32_t addr, int8_t value);
   int WriteExB(int32_t addr, uint8_t value);
 
-  inline uint16_t ReadHU(int32_t addr, Instruction* instr);
-  inline int16_t ReadH(int32_t addr, Instruction* instr);
-  uint16_t ReadExHU(int32_t addr, Instruction* instr);
+  inline uint16_t ReadHU(int32_t addr);
+  inline int16_t ReadH(int32_t addr);
+  uint16_t ReadExHU(int32_t addr);
   // Note: Overloaded on the sign of the value.
-  inline void WriteH(int32_t addr, uint16_t value, Instruction* instr);
-  inline void WriteH(int32_t addr, int16_t value, Instruction* instr);
-  int WriteExH(int32_t addr, uint16_t value, Instruction* instr);
-
-  inline int ReadW(int32_t addr, Instruction* instr);
-  int ReadExW(int32_t addr, Instruction* instr);
-  inline void WriteW(int32_t addr, int value, Instruction* instr);
-  int WriteExW(int32_t addr, int value, Instruction* instr);
+  inline void WriteH(int32_t addr, uint16_t value);
+  inline void WriteH(int32_t addr, int16_t value);
+  int WriteExH(int32_t addr, uint16_t value);
+
+  inline int ReadW(int32_t addr);
+  int ReadExW(int32_t addr);
+  inline void WriteW(int32_t addr, int value);
+  int WriteExW(int32_t addr, int value);
 
   int32_t* ReadDW(int32_t addr);
   void WriteDW(int32_t addr, int32_t value1, int32_t value2);