Remove spurious entry

src/freedombone-app-matrix

     # Disable the web client
     sed -i 's|web_client:.*|web_client: False|g' $MATRIX_DATA_DIR/homeserver.yaml
     sed -i 's|, webclient||g' $MATRIX_DATA_DIR/homeserver.yaml
+    sed -i "/- '0.0.0.0'/d" $MATRIX_DATA_DIR/homeserver.yaml
 
     chmod -R 700 $MATRIX_DATA_DIR/homeserver.yaml
     chown -R matrix:matrix /etc/matrix