generic/077: Don't delete $seqres.full file after test

When this test finishes there is no 077.full file with output from
commands.  Sometimes this information is useful for post mortem so
stop deleting the file upon test completion.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

tests/generic/077

@@ -73,6 +73,5 @@ cp -rf $filler $SCRATCH_MNT/subdir >$seqres.full 2>&1
 _check_scratch_fs
 
 echo "*** all done"
-rm -f $seqres.full
 status=0
 exit