Move config out of redundant sync directory

config/core.base_field_override.node.event.promote.yml

@@ -0,0 +1,24 @@
+uuid: 6c5cd503-b547-4ed9-8b69-39b4bb3bbd3d
+langcode: en
+status: true
+dependencies:
+  config:
+    - node.type.event
+_core:
+  default_config_hash: 0ZwB8TKGr6DFtyqXO9EF9_LotEKyybDeSPoSglVLWQo
+id: node.event.promote
+field_name: promote
+entity_type: node
+bundle: event
+label: 'Promoted to front page'
+description: ''
+required: false
+translatable: false
+default_value:
+  -
+    value: 1
+default_value_callback: ''
+settings:
+  on_label: 'On'
+  off_label: 'Off'
+field_type: boolean