clang warns:

    make[4]: Entering directory `./NetworkManager/libnm-glib'
      CC       libnm_glib_la-nm-remote-connection.lo
    nm-remote-connection.c:77:3: error: redefinition of typedef 'RemoteCall' is a C11 feature [-Werror,-Wtypedef-redefinition]
    } RemoteCall;
      ^
    nm-remote-connection.c:67:27: note: previous definition is here
    typedef struct RemoteCall RemoteCall;
                              ^

Signed-off-by: Thomas Haller <thaller@redhat.com>