Revert "Invoices: Support font choice and Arabic text"

This reverts commit d6f0615712.

src/pretix/helpers/reportlab.py

@@ -19,8 +19,6 @@
 # You should have received a copy of the GNU Affero General Public License along with this program.  If not, see
 # <https://www.gnu.org/licenses/>.
 #
-from arabic_reshaper import ArabicReshaper
-from django.utils.functional import SimpleLazyObject
 from PIL.Image import Resampling
 from reportlab.lib.utils import ImageReader
 
@@ -43,9 +41,3 @@ class ThumbnailingImageReader(ImageReader):
         # file handle if the file is a JPEG, and therefore does not respect the
         # (smaller) size of the modified image.
         return None
-
-
-reshaper = SimpleLazyObject(lambda: ArabicReshaper(configuration={
-    'delete_harakat': True,
-    'support_ligatures': False,
-}))