Revert "Attempt downgrade to sentry-sdk 1.8.*"

This reverts commit c1d1e437cc.

src/pretix/sentry.py

@@ -27,14 +27,9 @@ from functools import wraps
 from celery.exceptions import Retry
 from django.dispatch import Signal
 from sentry_sdk import Hub
-try:
-    from sentry_sdk.consts import OP
-    from sentry_sdk.integrations.django.signals_handlers import _get_receiver_name
-except ImportError:
-    # sentry-sdk<1.10
-    class OP:
-        EVENT_DJANGO = "event.django"
+from sentry_sdk.consts import OP
 from sentry_sdk.integrations import django as djangosentry
+from sentry_sdk.integrations.django.signals_handlers import _get_receiver_name
 from sentry_sdk.utils import capture_internal_exceptions
 
 MASK = '*' * 8
@@ -157,11 +152,7 @@ class PretixSentryIntegration(djangosentry.DjangoIntegration):
         # This is a workaround for https://github.com/getsentry/sentry-python/issues/1700
         # that needs to stay until it is fixed
         djangosentry.patch_signals = patched_patch_signals
-        try:
-            djangosentry.signals_handlers.patch_signals = patched_patch_signals
-        except AttributeError:
-            # sentry-sdk < 1.10.*
-            pass
+        djangosentry.signals_handlers.patch_signals = patched_patch_signals
 
         djangosentry.DjangoIntegration.setup_once()
         from django.core.handlers.base import BaseHandler