Bug 1876528 [wpt PR 44204] - Fix type annotations for remove_user_con…

…text command interface, a=testonly

Automatic update from web-platform-tests
Fix type annotations for remove_user_context command interface

--

wpt-commits: 9df54b7a774e195d6371bcef2f6569c33a051e04
wpt-pr: 44204

UltraBlame original commit: e17d2bbe016efdbc6268ddb2a6c217d9765fed0b

testing/web-platform/tests/tools/webdriver/webdriver/bidi/modules/browser.py

@@ -1,4 +1,4 @@
-from typing import Any, Mapping, MutableMapping, Optional
+from typing import Any, Mapping, MutableMapping
 
 from ._module import BidiModule, command
 
@@ -34,7 +34,7 @@ def _get_user_contexts(self, result: Mapping[str, Any]) -> Any:
 
     @command
     def remove_user_context(
-        self, user_context: Optional[str] = None
+        self, user_context: str
     ) -> Mapping[str, Any]:
         params: MutableMapping[str, Any] = {}