Revert "fix git wrapper (#29069)"

This reverts commit f8005d2737.

fix needs to be rethought as it applies to only newer git versions
and use of env shell breaks with non 'bourne compatible' shells

lib/ansible/modules/source_control/git.py

@@ -371,10 +371,9 @@ fi
 
 def set_git_ssh(ssh_wrapper, key_file, ssh_opts):
 
-    # git_ssh_command will override git_ssh, so only older git needs it
+    if os.environ.get("GIT_SSH"):
+        del os.environ["GIT_SSH"]
     os.environ["GIT_SSH"] = ssh_wrapper
-    # using shell to avoid 'noexec' issues if module temp dir is located in such a mount
-    os.environ["GIT_SSH_COMMAND"] = '%s %s' % (os.environ.get('SHELL', '/bin/sh'), ssh_wrapper)
 
     if os.environ.get("GIT_KEY"):
         del os.environ["GIT_KEY"]