[Buildroot] [git commit master] openmotif: remove package

[Thomas Petazzoni]

commit: http://git.buildroot.net/buildroot/commit/?id=3bd68817173de6b5f14b6f2f123d56e7acee32b0
branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/master

This is an old package. It is currently broken, and probably nobody
uses it. So let's get rid of it.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>

Patch is too large, so refusing to show it