bitbake: toaster: disable git remote check to allow for firewalls

bitbake: toaster: disable git remote check to allow for firewalls

Toaster users behind firewalls that block "git" access usually
require developers to add remap rules in their "~/.gitconfig"
to remap GIT accesses to HTTP* access. However, there is a
"git remote" test in Toaster that is not aware of such remaps,
resulting in a false error.

For now, disable this nice-to-have check to support this release,
and re-enable when we can add remapping accommodations for this
test.

[YOCTO #12944]

(Bitbake rev: abccd40536b366a418802c5ba8427454c2e3bb2c)

Signed-off-by: David Reyna <David.Reyna@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>