Drop unused Assembler::set_external_target_at() method.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/85793002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18055 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/assembler-arm-inl.h

@@ -457,12 +457,6 @@ void Assembler::deserialization_set_special_target_at(
 }
 
 
-void Assembler::set_external_target_at(Address constant_pool_entry,
-                                       Address target) {
-  Memory::Address_at(constant_pool_entry) = target;
-}
-
-
 static Instr EncodeMovwImmediate(uint32_t immediate) {
   ASSERT(immediate < 0x10000);
   return ((immediate & 0xf000) << 4) | (immediate & 0xfff);

src/arm/assembler-arm.h

@@ -803,11 +803,6 @@ class Assembler : public AssemblerBase {
   inline static void deserialization_set_special_target_at(
       Address constant_pool_entry, Address target);
 
-  // This sets the branch destination (which is in the constant pool on ARM).
-  // This is for calls and branches to runtime code.
-  inline static void set_external_target_at(Address constant_pool_entry,
-                                            Address target);
-
   // Here we are patching the address in the constant pool, not the actual call
   // instruction.  The address in the constant pool is the same size as a
   // pointer.

src/ia32/assembler-ia32.h

@@ -638,13 +638,6 @@ class Assembler : public AssemblerBase {
     set_target_address_at(instruction_payload, target);
   }
 
-  // This sets the branch destination (which is in the instruction on x86).
-  // This is for calls and branches to runtime code.
-  inline static void set_external_target_at(Address instruction_payload,
-                                            Address target) {
-    set_target_address_at(instruction_payload, target);
-  }
-
   static const int kSpecialTargetSize = kPointerSize;
 
   // Distance between the address of the code target in the call instruction

src/mips/assembler-mips.h

@@ -537,13 +537,6 @@ class Assembler : public AssemblerBase {
         target);
   }
 
-  // This sets the branch destination.
-  // This is for calls and branches to runtime code.
-  inline static void set_external_target_at(Address instruction_payload,
-                                            Address target) {
-    set_target_address_at(instruction_payload, target);
-  }
-
   // Size of an instruction.
   static const int kInstrSize = sizeof(Instr);
 

src/x64/assembler-x64.h

@@ -586,13 +586,6 @@ class Assembler : public AssemblerBase {
     set_target_address_at(instruction_payload, target);
   }
 
-  // This sets the branch destination (which is a load instruction on x64).
-  // This is for calls and branches to runtime code.
-  inline static void set_external_target_at(Address instruction_payload,
-                                            Address target) {
-    *reinterpret_cast<Address*>(instruction_payload) = target;
-  }
-
   inline Handle<Object> code_target_object_handle_at(Address pc);
   inline Address runtime_entry_at(Address pc);
   // Number of bytes taken up by the branch target in the code.