atheros: remove useless get_c0_compare_int fix

Remove get_c0_compare_int fix which is useless for latest kernels.

Tested on Ubnt Bullet2, which could successfully boot without this
workaround.

Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>

SVN-Revision: 40593

target/linux/atheros/patches-3.10/001-get_c0_compare_int_fix.patch

@@ -1,39 +0,0 @@
-Fix the usage of get_c0_compare_int: override cp0_compare_irq if the returned
-value is in the MIPS CPU IRQ range to ensure that c0_compare_int_usable()
-still works.
-
-Signed-off-by: Felix Fietkau <nbd@openwrt.org>
-
---- a/arch/mips/kernel/cevt-r4k.c
-+++ b/arch/mips/kernel/cevt-r4k.c
-@@ -177,20 +177,23 @@ int __cpuinit r4k_clockevent_init(void)
- 	struct clock_event_device *cd;
- 	unsigned int irq;
- 
--	if (!cpu_has_counter || !mips_hpt_frequency)
--		return -ENXIO;
--
--	if (!c0_compare_int_usable())
--		return -ENXIO;
--
- 	/*
- 	 * With vectored interrupts things are getting platform specific.
- 	 * get_c0_compare_int is a hook to allow a platform to return the
- 	 * interrupt number of it's liking.
- 	 */
- 	irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
--	if (get_c0_compare_int)
-+	if (get_c0_compare_int) {
- 		irq = get_c0_compare_int();
-+		if ((irq >= MIPS_CPU_IRQ_BASE) && (irq < MIPS_CPU_IRQ_BASE + 8))
-+			cp0_compare_irq = irq - MIPS_CPU_IRQ_BASE;
-+	}
-+
-+	if (!cpu_has_counter || !mips_hpt_frequency)
-+		return -ENXIO;
-+
-+	if (!c0_compare_int_usable())
-+		return -ENXIO;
- 
- 	cd = &per_cpu(mips_clockevent_device, cpu);
-