Revert "Introduce a NearLabel in thumb2."

Fails some benchmarks and libcore tests.

This reverts commit db0bbab279534974dca507946c66cff2d05dc9f9.

Change-Id: I5d1afef5ede87e65d61f49529027c5c2f35b17fb
diff --git a/compiler/utils/arm/assembler_arm32.h b/compiler/utils/arm/assembler_arm32.h
index 4564767..55ec7b4 100644
--- a/compiler/utils/arm/assembler_arm32.h
+++ b/compiler/utils/arm/assembler_arm32.h
@@ -201,8 +201,8 @@
   void vpopd(DRegister reg, int nregs, Condition cond = AL) OVERRIDE;
 
   // Branch instructions.
-  void b(Label* label, Condition cond = AL) OVERRIDE;
-  void bl(Label* label, Condition cond = AL) OVERRIDE;
+  void b(Label* label, Condition cond = AL);
+  void bl(Label* label, Condition cond = AL);
   void blx(Register rm, Condition cond = AL) OVERRIDE;
   void bx(Register rm, Condition cond = AL) OVERRIDE;
   void Lsl(Register rd, Register rm, uint32_t shift_imm, bool setcc = false,