net: Make "networking" one-click deselectable.

Use a menuconfig directive to make all of networking support one-click
deselectable from the top-level menu.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/Kconfig

@@ -2,9 +2,7 @@
 # Network configuration
 #
 
-menu "Networking"
-
-config NET
+menuconfig NET
 	bool "Networking support"
 	---help---
 	  Unless you really know what you are doing, you should say Y here.
@@ -22,7 +20,6 @@ config NET
 	  recommended to read the NET-HOWTO, available from
 	  <http://www.tldp.org/docs.html#howto>.
 
-# Make sure that all config symbols are dependent on NET
 if NET
 
 menu "Networking options"
@@ -252,5 +249,3 @@ source "net/rfkill/Kconfig"
 source "net/9p/Kconfig"
 
 endif   # if NET
-endmenu # Networking
-