sparc64: do not export pus_fs_struct

Al asked: BTW, why does sparc64 export put_fs_struct?  Grepping the
kernel tree did not show any users of an exported put_fs_struct - so
drop the export.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc/kernel/sparc_ksyms_64.c

@@ -180,7 +180,6 @@ EXPORT_SYMBOL(pci_dma_supported);
 EXPORT_SYMBOL(io_remap_pfn_range);
 
 EXPORT_SYMBOL(dump_fpu);
-EXPORT_SYMBOL(put_fs_struct);
 
 /* math-emu wants this */
 EXPORT_SYMBOL(die_if_kernel);