Revert 6e818216, from FS-6287 as it breaks challenge to invites we don't come back and respond

use AM_SILENT_RULES where available and remove our hacks for quiet builds as they don't work very well and cause other build problems

We were calling switch_epoch_time_now() twice for no good reason.

If an attacker can cause a device to make an authenticated request to
a service via TLS while including a payload of the attacker's choice
in that request, and if TLS compression is enabled, the attacker can
uncover the plaintext authentication information by making a series of
guesses and observing changes in the length of the ciphertext.

This is CVE-2012-4929.

FS-6360 --resolve

Thanks-to: Brian West <brian@freeswitch.org>

we are intentionally using a value outside of the enum here as a special value.  The compiler will always make this an int anyways, so this is safe.  cast to remove the warning

silence clang warning about always false, this is meant to keep naughty users for the api from causing a crash, the check is fine

FS-6293: srcdir builds, don't touch src/include/switch.h in builddir, it creates an empty one that is included before the real one