(testsuite) Remove some obsolete comments.

test/lib/library.exp

@@ -500,10 +500,7 @@ proc is_cygwin {} {
 # @param integer $size  Chunk size
 # @result boolean  True if successful, False if not
 proc match_items {items test {prompt /@} {size 20}} {
-    # NOTE: `exec sort' is used instead of `lsort' to achieve exactly the
-    #       same sort order as in bash -- FVu, Wed Nov 25 22:25:28 CET 2009
     set items [bash_sort $items]
-    #set items [exec sort << [join $items "\n"]]
     set result false
     for {set i 0} {$i < [llength $items]} {set i [expr {$i + $size}]} {
         set expected ""