9p: Allow building 9p with user namespaces enabled.

Now that the uid_t -> kuid_t, gid_t -> kgid_t conversion
has been completed in 9p allow 9p to be built when user
namespaces are enabled.

Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Ron Minnich <rminnich@gmail.com>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>

init/Kconfig

@@ -1070,11 +1070,7 @@ config UIDGID_CONVERTED
 	bool
 	default y
 
-	# Networking
-	depends on NET_9P = n
-
 	# Filesystems
-	depends on 9P_FS = n
 	depends on AFS_FS = n
 	depends on CIFS = n
 	depends on CODA_FS = n