[NET]: Remove mandoc reference to deleted file net_init.c

This patch by Jesper Juhl is still required in 2.6.11-rc2-mm1.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/DocBook/kernel-api.tmpl

@@ -152,7 +152,6 @@ KAO -->
   <chapter id="netdev">
      <title>Network device support</title>
      <sect1><title>Driver Support</title>
-!Edrivers/net/net_init.c
 !Enet/core/dev.c
      </sect1>
      <sect1><title>8390 Based Network Cards</title>