Revert "Add out-of-line constant pool support to Arm."

src/a64/assembler-a64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
@@ skipping 2777 matching lines @@
 
 void Assembler::RecordConstPool(int size) {
   // We only need this for debugger support, to correctly compute offsets in the
   // code.
 #ifdef ENABLE_DEBUGGER_SUPPORT
   RecordRelocInfo(RelocInfo::CONST_POOL, static_cast<intptr_t>(size));
 #endif
 }
 
 
-MaybeObject* Assembler::AllocateConstantPool(Heap* heap) {
-  // No out-of-line constant pool support.
-  UNREACHABLE();
-  return NULL;
-}
-
-
-void Assembler::PopulateConstantPool(ConstantPoolArray* constant_pool) {
-  // No out-of-line constant pool support.
-  UNREACHABLE();
-}
-
-
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_A64