Merge branch 'tj/maint-imap-send-remove-unused' into maint

* tj/maint-imap-send-remove-unused:
  imap-send: Remove unused 'use_namespace' variable

imap-send.c

@@ -161,7 +161,6 @@ static struct imap_server_conf server = {
 struct imap_store_conf {
 	struct store_conf gen;
 	struct imap_server_conf *server;
-	unsigned use_namespace:1;
 };
 
 #define NIL	(void *)0x1