[media] ir-hix5hd2: remove writel/readl_relaxed define

Commit 9439eb3ab9d1ec ("asm-generic: io: implement relaxed
accessor macros as conditional wrappers") has added
{read,write}{b,w,l,q}_relaxed to include/asm-generic/io.h

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/rc/ir-hix5hd2.c

@@ -16,14 +16,6 @@
 #include <linux/regmap.h>
 #include <media/rc-core.h>
 
-/* Allow the driver to compile on all architectures */
-#ifndef writel_relaxed
-# define writel_relaxed writel
-#endif
-#ifndef readl_relaxed
-# define readl_relaxed readl
-#endif
-
 #define IR_ENABLE		0x00
 #define IR_CONFIG		0x04
 #define CNT_LEADS		0x08