include/maxscale/gw.h removed.

In a subsequent change, the includes of server/core/*.c will be
cleaned up, and if there is a common set of include files, needed
by most, then a server/core/maxscale/core.h that includes those
will be introduced.

server/modules/routing/binlog/blr.c

@@ -78,7 +78,6 @@
 #include <sys/stat.h>
 #include <uuid/uuid.h>
 #include <maxscale/alloc.h>
-#include <maxscale/gw.h>
 
 static char *version_str = "V2.1.0";
 

server/modules/routing/binlog/blr_slave.c

@@ -83,7 +83,6 @@
 #include <maxscale/version.h>
 #include <zlib.h>
 #include <maxscale/alloc.h>
-#include <maxscale/gw.h>
 
 extern int load_mysql_users(SERV_LISTENER *listener);
 extern void blr_master_close(ROUTER_INSTANCE* router);