simplify config for parent nodes (#11840)

We don't need different parents each semester.

Author: BillWagner

quest-config.json

@@ -6,30 +6,5 @@
     },
     "ImportTriggerLabel": ":world_map: reQUEST",
     "ImportedLabel": ":pushpin: seQUESTered",
-    "ParentNodes": [
-        {
-            "Semester": "Bromine",
-            "ParentNodeId": 410746
-        },
-        {
-            "Label": "user-feedback",
-            "Semester": "Selenium",
-            "ParentNodeId": 286039
-        },
-        {
-            "Label": "doc-bug",
-            "Semester": "Selenium",
-            "ParentNodeId": 286039
-        },
-        {
-            "Label": "doc-update",
-            "Semester": "Selenium",
-            "ParentNodeId": 286038
-        },
-        {
-            "Semester": "Selenium",
-            "ParentNodeId": 308199
-        }
-    ],
     "DefaultParentNode": 410746
 }