workstation: Remove wvdial by default
    
    It's the only thing pulling in `compat-openssl10` which pulls in
    `make` due to not having the commit to primary `openssl` in
    https://src.fedoraproject.org/rpms/openssl/pull-request/1
    
    And drop `ppp` as an explicit dependency, it's already pulled in
    by other things such as `NetworkManager-pptp`; if we ever dropped
    that we'd want `ppp` to go away too.