[Swan-dev] get rid of getnetbyname() /etc/networks?

[D. Hugh Redelmeier]

Comments I added recently:

+	/*
+	 * try a name from /etc/networks
+	 *
+	 * Seems pretty obsolete:
+	 * - latest RFC, 1101, dated April 1989
+	 * - IPv4 only
+	 * - doesn't support classless networks
+	 * - Window has it
+	 */

We are using this as a fallback when DNS doesn't resolve a name.
We are not even using it to find a network, only an IP address.

Does anyone use this?
Should anyone use this?
Can we just delete this stuff from our code?