MB-63630: Remove internal index AFO disabled setting

We generally think that it should be enabled. We can still disable it
via diag/eval if necessary.

Change-Id: I4677b6acc1a84524eabf20e07b44d3e41031c604
Reviewed-on: https://review.couchbase.org/c/ns_server/+/218090
Tested-by: Ben Huddleston <[email protected]>
Reviewed-by: Peter Searby <[email protected]>
Well-Formed: Build Bot <[email protected]>

Author: BenHuddleston

apps/ns_server/src/menelaus_web_settings.erl

@@ -632,8 +632,6 @@ conf(internal) ->
      {event_logs_limit, eventLogsLimit, 10000,
       get_number(3000, 20000, 10000)},
      {gotraceback, gotraceback, <<"single">>, fun get_string/1},
-     {{auto_failover_disabled, index}, indexAutoFailoverDisabled, false,
-      fun get_bool/1},
      {failover_bulk_buckets_janitor_factor, failoverBulkJanitorFactor,
       1, get_number(1, ?MAX_BUCKETS_SUPPORTED)},
      {{cert, use_sha1}, certUseSha1, false, fun get_bool/1},