frontend: useless CoprDirsLogic.get_or_create trusted_caller arg

The trusted_caller was useful for Pagure Events daemon in the days when
we did not allow anyone to create :pr:<ID> directory.  Now when we do,
there's no need to use trusted_caller argument anymore.

frontend/coprs_frontend/coprs/logic/coprs_logic.py

@@ -664,7 +664,7 @@ def _valid_custom_dir_suffix(copr, dirname):
         return all([c.isnumeric() for c in parts[2]])
 
     @classmethod
-    def get_or_create(cls, copr, dirname, trusted_caller=False):
+    def get_or_create(cls, copr, dirname):
         """
         Create a CoprDir on-demand, e.g. before pull-request builds is
         submitted.  We don't create the "main" CoprDirs here (those are created
@@ -680,7 +680,7 @@ def get_or_create(cls, copr, dirname, trusted_caller=False):
                 copr.name,
             ))
 
-        if not trusted_caller and not cls._valid_custom_dir_suffix(copr, dirname):
+        if not cls._valid_custom_dir_suffix(copr, dirname):
             raise exceptions.BadRequest(
                 f"Please use directory format {copr.name}:custom:<SUFFIX_OF_CHOICE> "
                 f"or {copr.name}:pr:<ID> (for automatically removed directories)"

frontend/coprs_frontend/pagure_events.py

@@ -279,8 +279,7 @@ def the_call(self, message):
 
                 if event_info.object_type == 'pull-request':
                     dirname = pkg.copr.name + ':pr:' + str(event_info.object_id)
-                    copr_dir = CoprDirsLogic.get_or_create(pkg.copr, dirname,
-                                                           trusted_caller=True)
+                    copr_dir = CoprDirsLogic.get_or_create(pkg.copr, dirname)
                     update_callback = 'pagure_flag_pull_request'
                     scm_object_url = os.path.join(base_url, event_info.project_url_path,
                                                   'c', str(event_info.end_commit))