remove the check of line_already_in_db for gc_message that make gajim slow when joining a room

src/common/logger.py

@@ -209,9 +209,6 @@ def write(self, kind, jid, message = None, show = None, tim = None, subject = No
 		jids.jid text column will hold JID if TC-related, room_jid if GC-related,
 		ROOM_JID/nick if pm-related.'''
 
-		# check_unique if True will not write a second log line that has 
-		# same time, same msg, same jid and same kind 
-		check_unique = False
 		if self.jids_already_in == []: # only happens if we just created the db
 			self.con = sqlite.connect(LOG_DB_PATH, timeout = 20.0,
 				isolation_level = 'IMMEDIATE')
@@ -225,9 +222,6 @@ def write(self, kind, jid, message = None, show = None, tim = None, subject = No
 		subject_col = subject
 		if tim:
 			time_col = int(float(time.mktime(tim)))
-			now = int(float(time.time()))
-			if kind == 'gc_msg' and time_col < now:
-				check_unique = True
 		else:
 			time_col = int(float(time.time()))
 		
@@ -258,15 +252,6 @@ def write(self, kind, jid, message = None, show = None, tim = None, subject = No
 				nick = None
 			jid_id = self.get_jid_id(jid, 'ROOM') # re-get jid_id for the new jid
 			contact_name_col = nick
-			if check_unique: # check for same time, same msg, same jid, same kind
-				self.cur.execute('''
-					SELECT log_line_id FROM logs
-					WHERE time = ? AND message = ? AND jid_id = ?
-					AND kind = ?
-					''', (time_col, message_col, jid_id, constants.KIND_GC_MSG))
-				row = self.cur.fetchone()
-				if row:
-					return # do not add the same log line
 		else:
 			jid_id = self.get_jid_id(jid)