Kill extraneous x from 907db008ab0007f0a02

Looks like clang doesn't complain about this kind of thing.

Spotted by Andrea.  Bug not in any released version.

src/or/config.c

@@ -27,7 +27,7 @@
 #include "dirserv.h"
 #include "dirvote.h"
 #include "dns.h"
-#include "entrynodes.h"x
+#include "entrynodes.h"
 #include "geoip.h"
 #include "hibernate.h"
 #include "main.h"