netfs: Remove fs/netfs/io.c

Remove fs/netfs/io.c as it is no longer used.

Signed-off-by: David Howells <[email protected]>
cc: Jeff Layton <[email protected]>
cc: [email protected]
cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]/ # v2
Signed-off-by: Christian Brauner <[email protected]>

Author: dhowells