Actually lwsws doesn't need his own protocol handler even for http
any more.  The default http handler in lws should do everything.

Move the cgi routing into lws default http protocol handler, and
delete lwsws one.  Remove all protocols from lwsws so the lws
default one gets used.

With this, and the earlier move of lejp into lws, lwsws itself
becomes 15.5KB of x86_64 (mainly conf parsing).

Signed-off-by: Andy Green <andy@warmcat.com>