Revert of [arm] Assembler support for internal references.

src/arm/constants-arm.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_ARM_CONSTANTS_ARM_H_
 #define V8_ARM_CONSTANTS_ARM_H_
 
 // ARM EABI is required.
 #if defined(__arm__) && !defined(__ARM_EABI__)
 #error ARM EABI support is required.
@@ skipping 154 matching lines @@
   S6 = 1 << 6,  // Signed (or unsigned).
   L = 1 << 20,  // Load (or store).
   S = 1 << 20,  // Set condition code (or leave unchanged).
   W = 1 << 21,  // Writeback base register (or leave unchanged).
   A = 1 << 21,  // Accumulate in multiply instruction (or not).
   B = 1 << 22,  // Unsigned byte (or word).
   N = 1 << 22,  // Long (or short).
   U = 1 << 23,  // Positive (or negative) offset/index.
   P = 1 << 24,  // Offset/pre-indexed addressing (or post-indexed addressing).
   I = 1 << 25,  // Immediate shifter operand (or not).
-  B0 = 1 << 0,
   B4 = 1 << 4,
   B5 = 1 << 5,
   B6 = 1 << 6,
   B7 = 1 << 7,
   B8 = 1 << 8,
   B9 = 1 << 9,
   B12 = 1 << 12,
   B16 = 1 << 16,
   B17 = 1 << 17,
   B18 = 1 << 18,
@@ skipping 501 matching lines @@
   static int Number(const char* name, bool* is_double);
 
  private:
   static const char* names_[kNumVFPRegisters];
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_CONSTANTS_ARM_H_