Refs #7372 Remove unused option invalidate-dates

misc/log-analytics/import_logs.py

@@ -591,11 +591,6 @@ class Configuration(object):
             '--debug-force-one-hit-every-Ns', dest='force_one_action_interval', default=False, type='float',
             help="Debug option that will force each recorder to record one hit every N secs."
         )
-        option_parser.add_option(
-            '--invalidate-dates', dest='invalidate_dates', default=None,
-            help="Invalidate reports for the specified dates (format: YYYY-MM-DD,YYYY-MM-DD,...). "
-                 "By default, all dates found in the logs will be invalidated.",
-        )
         option_parser.add_option(
             '--force-lowercase-path', dest='force_lowercase_path', default=False, action='store_true',
             help="Make URL path lowercase so paths with the same letters but different cases are "