groups/{020.host_deps_rpm,231.native_packages_etc}.group: rpm: drop LMDB rpmdb support
    
    Upstream rpm has ripped out support for LMDB-based rpmdb due to underlying flaws in
    LMDB and lack of desire by the LMDB project to resolve them. We already prefer NDB
    anyway, and this lets us drop a dependency we do not use anywhere else.
    
    Signed-off-by: Neal Gompa <ngompa13@gmail.com>