Remove link to Phabricator

Phabricator is a locked resource, only accessible by Collabora and Bosch
employees at this point. Remove this from the community page as it's not
accessible by those most likely to be reading this page.

Signed-off-by: Martyn Welch <martyn.welch@collabora.com>

content/community.md

@@ -23,8 +23,6 @@ The best ways to get in touch with the community are through:
         discuss Apertis development and project
       - If you are interested in adding a new mailing list, please
         contact *listmaster at apertis.org*
-  - [Phabricator](https://phabricator.apertis.org/), where you can file
-    bugs and enhancement requests
 
 Remember that all contributors to Apertis are expected to [treat others
-with respect]( {{< ref "/code_of_conduct.md" >}} ).
\ No newline at end of file
+with respect]( {{< ref "/code_of_conduct.md" >}} ).