[MIPS] i8253.h: Remove all i8259 related definitions.

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

include/asm-mips/i8253.h

@@ -10,21 +10,6 @@
 #define PIT_CH0			0x40
 #define PIT_CH2			0x42
 
-/* i8259A PIC registers */
-#define PIC_MASTER_CMD		0x20
-#define PIC_MASTER_IMR		0x21
-#define PIC_MASTER_ISR		PIC_MASTER_CMD
-#define PIC_MASTER_POLL		PIC_MASTER_ISR
-#define PIC_MASTER_OCW3		PIC_MASTER_ISR
-#define PIC_SLAVE_CMD		0xa0
-#define PIC_SLAVE_IMR		0xa1
-
-/* i8259A PIC related value */
-#define PIC_CASCADE_IR		2
-#define MASTER_ICW4_DEFAULT	0x01
-#define SLAVE_ICW4_DEFAULT	0x01
-#define PIC_ICW4_AEOI		2
-
 extern void setup_pit_timer(void);
 
 #endif /* __ASM_I8253_H */