rockchip: arm: remove no use macro

TIMER7_BASE is no used by source code now, remove it.
Signed-off-by: NKever Yang <kever.yang@rock-chips.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

arch/arm/include/asm/arch-rockchip/hardware.h

@@ -10,8 +10,6 @@
 #define RK_SETBITS(set)			RK_CLRSETBITS(0, set)
 #define RK_CLRBITS(clr)			RK_CLRSETBITS(clr, 0)
 
-#define TIMER7_BASE		0xff810020
-
 #define rk_clrsetreg(addr, clr, set)	\
 				writel(((clr) | (set)) << 16 | (set), addr)
 #define rk_clrreg(addr, clr)		writel((clr) << 16, addr)