mod_sip: Fix compilation without SIP support

Make sure the T() macro is also defined when ejabberd is compiled
without SIP support.

Fixes #3143.

src/mod_sip.erl

@@ -27,6 +27,7 @@
 -protocol({rfc, 3261}).
 
 -include("logger.hrl").
+-include("translate.hrl").
 
 -ifndef(SIP).
 -export([start/2, stop/1, depends/2, mod_options/1, mod_doc/0]).
@@ -53,7 +54,6 @@ mod_options(_) ->
          mod_doc/0]).
 
 -include_lib("esip/include/esip.hrl").
--include("translate.hrl").
 
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