diff --git a/analytics/tests/test_counts.py b/analytics/tests/test_counts.py
index 64f93d6781..a6a8f677dd 100644
--- a/analytics/tests/test_counts.py
+++ b/analytics/tests/test_counts.py
@@ -1431,8 +1431,7 @@ class TestLoggingCountStats(AnalyticsTestCase):
         self.subscribe(user2, stream.name)
 
         self.send_personal_message(user1, user2)
-        client = get_client("website")
-        do_mark_all_as_read(user2, client)
+        do_mark_all_as_read(user2)
         self.assertEqual(
             1,
             UserCount.objects.filter(property=read_count_property).aggregate(Sum("value"))[
@@ -1463,7 +1462,7 @@ class TestLoggingCountStats(AnalyticsTestCase):
         )
 
         message = self.send_stream_message(user2, stream.name)
-        do_update_message_flags(user1, client, "add", "read", [message])
+        do_update_message_flags(user1, "add", "read", [message])
         self.assertEqual(
             4,
             UserCount.objects.filter(property=read_count_property).aggregate(Sum("value"))[
diff --git a/zerver/lib/actions.py b/zerver/lib/actions.py
index 5e8ef5030a..10939fc9a0 100644
--- a/zerver/lib/actions.py
+++ b/zerver/lib/actions.py
@@ -6151,7 +6151,7 @@ class ReadMessagesEvent:
     flag: str = field(default="read", init=False)
 
 
-def do_mark_all_as_read(user_profile: UserProfile, client: Client) -> int:
+def do_mark_all_as_read(user_profile: UserProfile) -> int:
     log_statsd_event("bankruptcy")
 
     # First, we clear mobile push notifications.  This is safer in the
@@ -6346,7 +6346,7 @@ def do_clear_mobile_push_notifications_for_ids(
 
 
 def do_update_message_flags(
-    user_profile: UserProfile, client: Client, operation: str, flag: str, messages: List[int]
+    user_profile: UserProfile, operation: str, flag: str, messages: List[int]
 ) -> int:
     valid_flags = [item for item in UserMessage.flags if item not in UserMessage.NON_API_FLAGS]
     if flag not in valid_flags:
diff --git a/zerver/tests/test_events.py b/zerver/tests/test_events.py
index 0f6df19613..1462234d34 100644
--- a/zerver/tests/test_events.py
+++ b/zerver/tests/test_events.py
@@ -625,17 +625,13 @@ class NormalActionsTest(BaseAction):
         )
         user_profile = self.example_user("hamlet")
         events = self.verify_action(
-            lambda: do_update_message_flags(
-                user_profile, get_client("website"), "add", "starred", [message]
-            ),
+            lambda: do_update_message_flags(user_profile, "add", "starred", [message]),
             state_change_expected=True,
         )
         check_update_message_flags_add("events[0]", events[0])
 
         events = self.verify_action(
-            lambda: do_update_message_flags(
-                user_profile, get_client("website"), "remove", "starred", [message]
-            ),
+            lambda: do_update_message_flags(user_profile, "remove", "starred", [message]),
             state_change_expected=True,
         )
         check_update_message_flags_remove("events[0]", events[0])
@@ -653,9 +649,7 @@ class NormalActionsTest(BaseAction):
             )
 
             self.verify_action(
-                lambda: do_update_message_flags(
-                    user_profile, get_client("website"), "add", "read", [message]
-                ),
+                lambda: do_update_message_flags(user_profile, "add", "read", [message]),
                 state_change_expected=True,
             )
 
diff --git a/zerver/tests/test_push_notifications.py b/zerver/tests/test_push_notifications.py
index e0aec5dc7a..13cf263aab 100644
--- a/zerver/tests/test_push_notifications.py
+++ b/zerver/tests/test_push_notifications.py
@@ -1638,9 +1638,7 @@ class TestAPNs(PushNotificationTest):
         # Mark the messages as read and test whether
         # the count decreases correctly.
         for i, message_id in enumerate(message_ids):
-            do_update_message_flags(
-                user_profile, get_client("website"), "add", "read", [message_id]
-            )
+            do_update_message_flags(user_profile, "add", "read", [message_id])
             self.assertEqual(get_apns_badge_count(user_profile), 0)
             self.assertEqual(get_apns_badge_count_future(user_profile), num_messages - i - 1)
 
diff --git a/zerver/views/message_flags.py b/zerver/views/message_flags.py
index 8e3660edf9..7ca7436910 100644
--- a/zerver/views/message_flags.py
+++ b/zerver/views/message_flags.py
@@ -36,10 +36,9 @@ def update_message_flags(
     flag: str = REQ(),
 ) -> HttpResponse:
     request_notes = RequestNotes.get_notes(request)
-    assert request_notes.client is not None
     assert request_notes.log_data is not None
 
-    count = do_update_message_flags(user_profile, request_notes.client, operation, flag, messages)
+    count = do_update_message_flags(user_profile, operation, flag, messages)
 
     target_count_str = str(len(messages))
     log_data_str = f"[{operation} {flag}/{target_count_str}] actually {count}"
@@ -51,8 +50,7 @@ def update_message_flags(
 @has_request_variables
 def mark_all_as_read(request: HttpRequest, user_profile: UserProfile) -> HttpResponse:
     request_notes = RequestNotes.get_notes(request)
-    assert request_notes.client is not None
-    count = do_mark_all_as_read(user_profile, request_notes.client)
+    count = do_mark_all_as_read(user_profile)
 
     log_data_str = f"[{count} updated]"
     assert request_notes.log_data is not None