s390/lowcore: Remove unused machine_flags

The machine_flags member in struct lowcore is not used anymore.
Remove it.

Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

Author: hcahca

arch/s390/include/asm/lowcore.h

@@ -164,9 +164,7 @@ struct lowcore {
 	__u32	spinlock_index;			/* 0x03b0 */
 	__u8	pad_0x03b4[0x03b8-0x03b4];	/* 0x03b4 */
 	__u64	percpu_offset;			/* 0x03b8 */
-	__u8	pad_0x03c0[0x03c8-0x03c0];	/* 0x03c0 */
-	__u64	machine_flags;			/* 0x03c8 */
-	__u8	pad_0x03d0[0x0400-0x03d0];	/* 0x03d0 */
+	__u8	pad_0x03c0[0x0400-0x03c0];	/* 0x03c0 */
 
 	__u32	return_lpswe;			/* 0x0400 */
 	__u32	return_mcck_lpswe;		/* 0x0404 */

arch/s390/kernel/setup.c

@@ -414,7 +414,6 @@ static void __init setup_lowcore(void)
 	lc->clock_comparator = clock_comparator_max;
 	lc->current_task = (unsigned long)&init_task;
 	lc->lpp = LPP_MAGIC;
-	lc->machine_flags = get_lowcore()->machine_flags;
 	lc->preempt_count = get_lowcore()->preempt_count;
 	nmi_alloc_mcesa_early(&lc->mcesad);
 	lc->sys_enter_timer = get_lowcore()->sys_enter_timer;

arch/s390/kernel/smp.c

@@ -265,7 +265,6 @@ static void pcpu_prepare_secondary(struct pcpu *pcpu, int cpu)
 	lc->percpu_offset = __per_cpu_offset[cpu];
 	lc->kernel_asce = get_lowcore()->kernel_asce;
 	lc->user_asce = s390_invalid_asce;
-	lc->machine_flags = get_lowcore()->machine_flags;
 	lc->user_timer = lc->system_timer =
 		lc->steal_timer = lc->avg_steal_timer = 0;
 	abs_lc = get_abs_lowcore();