pw_system: Remove use of BooleanOptionalAction

Remove use of argparse.BooleanOptionalAction which isn't supported by
Python 3.8.

Change-Id: I1d7ea1dbf6045f620604d6c9e970fd622ed98a69
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/111671
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
Pigweed-Auto-Submit: Rob Mohr <mohrr@google.com>
Reviewed-by: Anthony DiGirolamo <tonymd@google.com>

pw_system/py/pw_system/console.py

@@ -161,11 +161,18 @@ def _parse_args():
                         dest='use_ipython',
                         help='Use IPython instead of pw_console.')
 
+    # TODO(b/248257406) Use argparse.BooleanOptionalAction when Python 3.8 is
+    # no longer supported.
     parser.add_argument('--rpc-logging',
-                        action=argparse.BooleanOptionalAction,
+                        action='store_true',
                         default=True,
                         help='Use pw_rpc based logging.')
 
+    parser.add_argument('--no-rpc-logging',
+                        action='store_false',
+                        dest='rpc_logging',
+                        help="Don't use pw_rpc based logging.")
+
     return parser.parse_args()