[FAB-2556] Remove 'behave' from 'make all' target

Resolve [FAB-2556] by removing 'behave' from the 'make all'
target. Behave requires Vagrant and the current docs instruct
new contributors to not use Vagrant and invoke the 'make all'
target. Behave may still be run with using 'make behave'.

Change-Id: I69837194a6be1d44d145da0d8654af4ca5bfb04e
Signed-off-by: Sheehan Anderson <sranderson@gmail.com>