adb chokes on empty symlinks

[ShapeShifter499]

adb is choking on empty symlinks inside the ipkg ipk file, I found adding a few remove lines fixes this, my re-edited part is below.

  install_ipkg () {
           rm opt/lib/libipkg.so.0
            rm opt/lib/libipkg.so
            rm opt/bin/ipkg-opt

            adb push opt $tmp_dir

            t_mkdir_p /opt/bin
            t_mkdir_p /opt/lib

            install_bin ipkg

            t_cp $tmp_dir/lib/libipkg.so.0.0.0 /opt/lib/libipkg.so.0.0.0
            t_cd_ln /opt/lib/ -s libipkg.so.0.0.0 libipkg.so.0
            t_cd_ln /opt/lib/ -s libipkg.so.0.0.0 libipkg.so
  }