LU-6512 llite:ll_dir_ioctl cleanup of redundant comparisons

LU-6512 llite:ll_dir_ioctl cleanup of redundant comparisons

In ll_dir_ioctl() two identical comparisions are present for
return code (rc) of ll_dir_getstripe(). This patch removes
the other inside if( ) condition which is not necessary.

Change-Id: Ia32dd5ac5937d30dd3676094ef99a623e5cca608
Signed-off-by: Parinay Kondekar <parinay.kondekar@seagate.com>
Reviewed-on: http://review.whamcloud.com/18027
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Tested-by: Jenkins
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>