remove unsupported lang

[ltclm]

e2e test are failing in the current milestone deploy:

Traceback (most recent call last):
  File "/home/ltclm/.local/share/virtualenvs/mf-chsdi3-rPHPdC_d/lib/python3.9/site-packages/pyramid_mako/__init__.py", line 148, in __call__
    result = template.render_unicode(**system)
  File "/home/ltclm/.local/share/virtualenvs/mf-chsdi3-rPHPdC_d/lib/python3.9/site-packages/mako/template.py", line 444, in render_unicode
    return runtime._render(
  File "/home/ltclm/.local/share/virtualenvs/mf-chsdi3-rPHPdC_d/lib/python3.9/site-packages/mako/runtime.py", line 874, in _render
    _render_context(
  File "/home/ltclm/.local/share/virtualenvs/mf-chsdi3-rPHPdC_d/lib/python3.9/site-packages/mako/runtime.py", line 916, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File "/home/ltclm/.local/share/virtualenvs/mf-chsdi3-rPHPdC_d/lib/python3.9/site-packages/mako/runtime.py", line 943, in _exec_template
    callable_(context, *args, **kwargs)
  File "/home/ltclm/mf-chsdi3/chsdi/templates/htmlpopup/base.mako", line 59, in render_body
    ${self.table_body(c, lang)}
  File "/home/ltclm/mf-chsdi3/chsdi/templates/htmlpopup/bakom_standorte_mobilfunkanlagen.mako", line 19, in render_table_body
    <td>${c['attributes'][typ_text] or '-'}</td>
KeyError: 'typ_rm'

rm is not supported in the model

[rebert]

merci