fix: Remove IDM versions from schema (#13)

https://app.devrev.ai/devrev/works/ISS-192145

Author: tilenkavcic

initial_mappings_schema.yaml

@@ -510,16 +510,6 @@ properties:
                     Possible mappings of external record types to DevRev object types.
                 type: object
         type: object
-    devrev_metadata_version:
-        description: |
-            The version of the DevRev metadata on which the offered options are
-            based.
-        format: int64
-        type: integer
-    format_version:
-        description: The format version of initial domain mapping.
-        format: text
-        type: string
 title: airdrop-recipe-initial-domain-mappings-install-request
 type: object