[AArch64] Remove unused variable and marco

gcc/ChangeLog

  2014-10-15  Renlin Li  <renlin.Li@arm.com>

     * config/aarch64/aarch64.h (ARM_DEFAULT_PCS, arm_pcs_variant): Delete.

From-SVN: r216253

gcc/ChangeLog

+2014-10-15  Renlin Li <renlin.li@arm.com>
+
+	* config/aarch64/aarch64.h (ARM_DEFAULT_PCS, arm_pcs_variant): Delete.
+
 2014-10-15  Jakub Jelinek  <jakub@redhat.com>
 
 	* tree-ssa-reassoc.c (optimize_range_tests_diff): Perform

gcc/config/aarch64/aarch64.h

@@ -585,11 +585,7 @@ enum arm_pcs
 };
 
 
-extern enum arm_pcs arm_pcs_variant;
 
-#ifndef ARM_DEFAULT_PCS
-#define ARM_DEFAULT_PCS ARM_PCS_AAPCS64
-#endif
 
 /* We can't use enum machine_mode inside a generator file because it
    hasn't been created yet; we shouldn't be using any code that