install: move requires to top of file
Remove an internal method from compat
Remove compat/brewkit

Formulae from the "brewkit" era are no longer compatible with the
Formula class.

This file was (unintentionally) removed from the $LOAD_PATH quite
a while ago, and nobody has complained, so remove it.
mongodb 2.6.2

Closes #30202.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
mongodb: update 2.6.2 bottle.
tuntap: use tarball

Closes #30199.
Don't load unused compat files for tests