i2c: pxa: remove unneeded includes

i2c-pxa does not need linux/sched.h nor linux/time.h includes, so
remove these.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/i2c-pxa.c

@@ -20,8 +20,6 @@
 #include <linux/module.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
-#include <linux/time.h>
-#include <linux/sched.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
@@ -34,8 +32,6 @@
 #include <linux/io.h>
 #include <linux/platform_data/i2c-pxa.h>
 
-#include <asm/irq.h>
-
 struct pxa_reg_layout {
 	u32 ibmr;
 	u32 idbr;