xfstests: cleanup duplicates in all tests

There are duplicate blank lines, comment hash and lines
containing duplicate seqres= declarations, remove them.

Signed-off-by: Rich Johnston <rjohnston@sgi.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>

tests/xfs/064

@@ -24,8 +24,6 @@
 
 seq=`basename $0`
 seqres=$RESULT_DIR/$seq
-seqres=$RESULT_DIR/$seq
-seqres=$RESULT_DIR/$seq
 echo "QA output created by $seq"
 
 here=`pwd`
@@ -38,7 +36,6 @@ trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
 . ./common/filter
 . ./common/dump
 
-
 _ls_size_filter()
 {
     #