iwlagn: remove ucode_data_backup

This was used only on 4965 in conjunction with
the bootstrap ucode.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2 files changed