MIPS: lib: mips-atomic.c: Remove obsolete ifdefery

Having #ifdefs just to guard comments is not really helpful
so drop them. Moreover, the code wasn't really reached anyway
since there is a #ifndef CONFIG_CPU_MIPSR2 on the top of the file.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8513/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/lib/mips-atomic.c

@@ -42,15 +42,11 @@ notrace void arch_local_irq_disable(void)
 	__asm__ __volatile__(
 	"	.set	push						\n"
 	"	.set	noat						\n"
-#if   defined(CONFIG_CPU_MIPSR2)
-	/* see irqflags.h for inline function */
-#else
 	"	mfc0	$1,$12						\n"
 	"	ori	$1,0x1f						\n"
 	"	xori	$1,0x1f						\n"
 	"	.set	noreorder					\n"
 	"	mtc0	$1,$12						\n"
-#endif
 	"	" __stringify(__irq_disable_hazard) "			\n"
 	"	.set	pop						\n"
 	: /* no outputs */
@@ -72,15 +68,11 @@ notrace unsigned long arch_local_irq_save(void)
 	"	.set	push						\n"
 	"	.set	reorder						\n"
 	"	.set	noat						\n"
-#if   defined(CONFIG_CPU_MIPSR2)
-	/* see irqflags.h for inline function */
-#else
 	"	mfc0	%[flags], $12					\n"
 	"	ori	$1, %[flags], 0x1f				\n"
 	"	xori	$1, 0x1f					\n"
 	"	.set	noreorder					\n"
 	"	mtc0	$1, $12						\n"
-#endif
 	"	" __stringify(__irq_disable_hazard) "			\n"
 	"	.set	pop						\n"
 	: [flags] "=r" (flags)
@@ -103,18 +95,12 @@ notrace void arch_local_irq_restore(unsigned long flags)
 	"	.set	push						\n"
 	"	.set	noreorder					\n"
 	"	.set	noat						\n"
-#if   defined(CONFIG_CPU_MIPSR2) && defined(CONFIG_IRQ_CPU)
-	/* see irqflags.h for inline function */
-#elif defined(CONFIG_CPU_MIPSR2)
-	/* see irqflags.h for inline function */
-#else
 	"	mfc0	$1, $12						\n"
 	"	andi	%[flags], 1					\n"
 	"	ori	$1, 0x1f					\n"
 	"	xori	$1, 0x1f					\n"
 	"	or	%[flags], $1					\n"
 	"	mtc0	%[flags], $12					\n"
-#endif
 	"	" __stringify(__irq_disable_hazard) "			\n"
 	"	.set	pop						\n"
 	: [flags] "=r" (__tmp1)
@@ -136,18 +122,12 @@ notrace void __arch_local_irq_restore(unsigned long flags)
 	"	.set	push						\n"
 	"	.set	noreorder					\n"
 	"	.set	noat						\n"
-#if   defined(CONFIG_CPU_MIPSR2) && defined(CONFIG_IRQ_CPU)
-	/* see irqflags.h for inline function */
-#elif defined(CONFIG_CPU_MIPSR2)
-	/* see irqflags.h for inline function */
-#else
 	"	mfc0	$1, $12						\n"
 	"	andi	%[flags], 1					\n"
 	"	ori	$1, 0x1f					\n"
 	"	xori	$1, 0x1f					\n"
 	"	or	%[flags], $1					\n"
 	"	mtc0	%[flags], $12					\n"
-#endif
 	"	" __stringify(__irq_disable_hazard) "			\n"
 	"	.set	pop						\n"
 	: [flags] "=r" (__tmp1)