ARC: Remove unused EM_ARC_A5

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

include/elf.h

@@ -258,7 +258,6 @@ typedef struct
 #define EM_MN10200	90		/* Matsushita MN10200 */
 #define EM_PJ		91		/* picoJava */
 #define EM_OPENRISC	92		/* OpenRISC 32-bit embedded processor */
-#define EM_ARC_A5	93		/* ARC Cores Tangent-A5 */
 #define EM_ARCOMPACT	93		/* ARCompact ISA based Cores: ARC 700 */
 #define EM_XTENSA	94		/* Tensilica Xtensa Architecture */
 #define EM_IP2K		101		/* Ubicom IP2022 micro controller */