grep: Remove comment

The comment was introduced in 500f07fee50ab16a70fe2946b85318020c7f4017 and
relates to absent cleanup code at the end of main(), not the code following
it. It relates to fallible flushing of stdout and related error handling,
but even then it doesn't explain much.
Copyright-paperwork-exempt: yes

1 files changed, 0 insertions, 1 deletions

diff --git a/src/grep.c b/src/grep.c
index 6ff852ad..9c933e46 100644
--- a/src/grep.c
+++ b/src/grep.c
@@ -3008,6 +3008,5 @@ main (int argc, char **argv)
     status &= grep_command_line_arg (*files++);
   while (*files != NULL);
 
-  /* We register via atexit to test stdout.  */
   return errseen ? EXIT_TROUBLE : status;
 }