[PATCH] x86-64: Unexport __supported_pte_mask

The symbol is needed to manipulate page tables, and modules shouldn't
do that.

Leftover from 2.4, but no in tree module should need it now.
Signed-off-by: Andi Kleen <ak@suse.de>

arch/x86_64/kernel/setup64.c

@@ -37,7 +37,6 @@ struct desc_ptr idt_descr = { 256 * 16 - 1, (unsigned long) idt_table };
 char boot_cpu_stack[IRQSTACKSIZE] __attribute__((section(".bss.page_aligned")));
 
 unsigned long __supported_pte_mask __read_mostly = ~0UL;
-EXPORT_SYMBOL(__supported_pte_mask);
 static int do_not_nx __cpuinitdata = 0;
 
 /* noexec=on|off