diff --git a/execute_cmd.c b/execute_cmd.c
--- a/execute_cmd.c
+++ b/execute_cmd.c
@@ -5496,11 +5496,7 @@ execute_disk_command (words, redirects, command_line, pipe_in, pipe_out,
     {
       /* If we're optimizing out the fork (implicit `exec'), decrement the
 	 shell level like `exec' would do. */
-#if 0 /* TAG: bash-5.2 psmith 10/11/2020 */
       if (nofork && pipe_in == NO_PIPE && pipe_out == NO_PIPE && (subshell_environment & SUBSHELL_PIPE) == 0)
-#else
-      if (nofork && pipe_in == NO_PIPE && pipe_out == NO_PIPE)
-#endif
 	adjust_shell_level (-1);
 
       maybe_make_export_env ();