Revert "add remote allow system access"

This reverts commit cec4511.

Author: ben-c-at-moz

conftest.py

@@ -447,7 +447,6 @@ def driver(
     """
     try:
         options = Options()
-        options.add_argument("--remote-allow-system-access")
         if opt_headless:
             options.add_argument("--headless")
         options.binary_location = fx_executable

modules/testrail.py

@@ -173,7 +173,7 @@ def update_test_case(self, case_id, **kwargs):
         """Given a test case id, update according to keyword args"""
         if not kwargs:
             return None
-        return self.client.send_post(f"update_case/{case_id}", kwargs)
+        return self.client.send_post(f"update_case/{case_id}", **kwargs)
 
     def create_test_run_on_plan_entry(
         self, plan_id, entry_id, config_ids, description=None, case_ids=None