This basically reverts ac606105. It was added to help the windows cross
builds on our CI. It served a purpose but with the requirements on
native eet, edje_cc and up to elm_prefs_cc we end up with a full native
build of EFL in most cases anyway.
A full meson build of EFL with examples, bindings and tests disabled is
actually quite fast and makes sure we have the latest needed on the CI
for the cross build. I switched over to this a week ago, so we can get
rid of this extra target to maintain.