ARM: clps711x: Cleanup IRQ handling

This patch contains two changes:
- Removed unused definitions from mach/irqs.h
- Do not mask interrupts in ack procedure, because we have separate
  intX_mask procedure for do it and actually these 2 functions are
  called sequentially
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-clps711x/common.c

@@ -66,12 +66,6 @@ static void int1_mask(struct irq_data *d)
 
 static void int1_ack(struct irq_data *d)
 {
-	u32 intmr1;
-
-	intmr1 = clps_readl(INTMR1);
-	intmr1 &= ~(1 << d->irq);
-	clps_writel(intmr1, INTMR1);
-
 	switch (d->irq) {
 	case IRQ_CSINT:  clps_writel(0, COEOI);  break;
 	case IRQ_TC1OI:  clps_writel(0, TC1EOI); break;
@@ -108,12 +102,6 @@ static void int2_mask(struct irq_data *d)
 
 static void int2_ack(struct irq_data *d)
 {
-	u32 intmr2;
-
-	intmr2 = clps_readl(INTMR2);
-	intmr2 &= ~(1 << (d->irq - 16));
-	clps_writel(intmr2, INTMR2);
-
 	switch (d->irq) {
 	case IRQ_KBDINT: clps_writel(0, KBDEOI); break;
 	}

arch/arm/mach-clps711x/include/mach/irqs.h

@@ -35,7 +35,6 @@
 #define IRQ_SSEOTI			15
 
 #define INT1_IRQS			(0x0000fff0)
-#define INT1_ACK_IRQS			(0x00004f10)
 
 /*
  * Interrupts from INTSR2
@@ -47,7 +46,5 @@
 #define IRQ_URXINT2			(16+13)	/* bit 13 */
 
 #define INT2_IRQS			(0x30070000)
-#define INT2_ACK_IRQS			(0x00010000)
-
-#define NR_IRQS                         30
 
+#define NR_IRQS				30