The variable found_uncached_bg in find_free_extent is not used since commit
285ff5af
(Btrfs: remove the ideal caching code)
Signed-off-by: NValentina Giusti <valentina.giusti@microon.de>
Signed-off-by: NJosef Bacik <jbacik@fusionio.com>
Signed-off-by: NChris Mason <clm@fb.com>