Avoid breakage with Python 3.13. (#354)

plugins/modules/docker_container.py

@@ -1188,7 +1188,6 @@ status:
 '''
 
 import os
-import pipes
 import re
 import shlex
 import traceback
@@ -1228,14 +1227,6 @@ except Exception:
     pass
 
 
-def shell_join(parts):
-    if getattr(shlex, 'quote', None):
-        quote = shlex.quote
-    else:
-        quote = pipes.quote
-    return ' '.join([quote(part) for part in parts])
-
-
 REQUIRES_CONVERSION_TO_BYTES = [
     'kernel_memory',
     'memory',