appmenu_select: remove --i-understand-format-is-unstable flag

Author: Jayant-kernel

qubesmanager/appmenu_select.py

@@ -96,7 +96,6 @@ def fill_apps_list(self, template=None):
         command = [
             "qvm-appmenus",
             "--get-available",
-            "--i-understand-format-is-unstable",
             "--file-field",
             "Comment",
             "--file-field",