user module: force= and remove= should not be mutually exclusive

There is a bug in the user module.
the force=yes and remove=yes should not be mutually exclusive.

currently

    - name: suppress user user
      user: name={{ item.user }}
              force=yes remove=yes
              state=absent
      sudo: yes 
      sudo_user: root

does not remove the home dir

this PR fixes the issue