[Minor] Remove obsoleted global function

.luacheckrc

@@ -24,7 +24,6 @@ globals = {
   'rspamd_redis_make_request',
   'rspamd_str_split',
   'rspamd_version',
-  'rspamd_map_add',
   'rspamd_maps',
   'rspamd_plugins_state',
   'rspamadm',

src/plugins/lua/clickhouse.lua

@@ -1389,7 +1389,8 @@ if opts then
     rspamd_logger.infox(rspamd_config, 'no servers are specified, disabling module')
     lua_util.disable_module(N, "config")
   else
-    settings['from_map'] = rspamd_map_add('clickhouse', 'from_tables',
+    local lua_maps = require "lua_maps"
+    settings['from_map'] = lua_maps.map_add('clickhouse', 'from_tables',
         'regexp', 'clickhouse specific domains')
 
     settings.upstream = upstream_list.create(rspamd_config,

src/plugins/lua/once_received.lua

@@ -196,7 +196,8 @@ if opts then
           good_hosts = v
         end
       elseif n == 'whitelist' then
-        whitelist = rspamd_map_add('once_received', 'whitelist', 'radix',
+        local lua_maps = require "lua_maps"
+        whitelist = lua_maps.map_add('once_received', 'whitelist', 'radix',
           'once received whitelist')
       elseif n == 'symbol_mx' then
         symbol_mx = v

src/plugins/lua/reputation.lua

@@ -410,7 +410,7 @@ local function ip_reputation_init(rule)
   local cfg = rule.selector.config
 
   if cfg.asn_cc_whitelist then
-    cfg.asn_cc_whitelist = rspamd_map_add('reputation',
+    cfg.asn_cc_whitelist = lua_maps.map_add('reputation',
       'asn_cc_whitelist',
       'map',
       'IP score whitelisted ASNs/countries')