ARM: entry-common: get rid of unnecessary ifdefs

The contents of the asm_trace_hardirqs_on is already conditional on
CONFIG_TRACE_IRQFLAGS.  There's little point also making the use
of the macro conditional as well.  Get rid of these ifdefs to make
the code easier to read.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/kernel/entry-common.S

@@ -35,9 +35,7 @@ ret_fast_syscall:
 	ldr	r1, [tsk, #TI_FLAGS]
 	tst	r1, #_TIF_WORK_MASK
 	bne	fast_work_pending
-#if defined(CONFIG_IRQSOFF_TRACER)
 	asm_trace_hardirqs_on
-#endif
 
 	/* perform architecture specific actions before user return */
 	arch_ret_to_user r1, lr
@@ -71,9 +69,8 @@ ENTRY(ret_to_user_from_irq)
 	tst	r1, #_TIF_WORK_MASK
 	bne	work_pending
 no_work_pending:
-#if defined(CONFIG_IRQSOFF_TRACER)
 	asm_trace_hardirqs_on
-#endif
+
 	/* perform architecture specific actions before user return */
 	arch_ret_to_user r1, lr