ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this

L2X0_AUX_CTRL_MASK is not useful for PL310s.  It would be better if
people thought about their value for this rather than cargo-cult
programming.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/include/asm/hardware/cache-l2x0.h

@@ -87,7 +87,6 @@
 #define L310_CACHE_ID_RTL_R3P2		0x08
 #define L310_CACHE_ID_RTL_R3P3		0x09
 
-#define L2X0_AUX_CTRL_MASK			0xc0000fff
 /* L2C auxiliary control register - bits common to L2C-210/220/310 */
 #define L2C_AUX_CTRL_WAY_SIZE_SHIFT		17
 #define L2C_AUX_CTRL_WAY_SIZE_MASK		(7 << 17)