Remove unused vxtime.hz field

Signed-off-by: Andi Kleen <ak@suse.de>

Index: linux/arch/x86_64/kernel/time.c
===================================================================
--- linux.orig/arch/x86_64/kernel/time.c
+++ linux/arch/x86_64/kernel/time.c
@@ -937,7 +937,6 @@ void __init time_init(void)
 	vxtime.mode = VXTIME_TSC;
 	vxtime.quot = (1000000L << 32) / vxtime_hz;
 	vxtime.tsc_quot = (1000L << 32) / cpu_khz;
-	vxtime.hz = vxtime_hz;
 	rdtscll_sync(&vxtime.last_tsc);
 	setup_irq(0, &irq0);
 
Index: linux/include/asm-x86_64/vsyscall.h
===================================================================
--- linux.orig/include/asm-x86_64/vsyscall.h
+++ linux/include/asm-x86_64/vsyscall.h
@@ -29,7 +29,6 @@ enum vsyscall_num {
 
 struct vxtime_data {
 	long hpet_address;	/* HPET base address */
-	unsigned long hz;	/* HPET clocks / sec */
 	int last;
 	unsigned long last_tsc;
 	long quot;