diff --git a/src/doc/cfood-schema.yml b/src/doc/cfood-schema.yml
deleted file mode 100644
index d7b5abfd1ac6c381b50bd4ce61015f1b8602b408..0000000000000000000000000000000000000000
--- a/src/doc/cfood-schema.yml
+++ /dev/null
@@ -1,67 +0,0 @@
-cfood:
-  type: object
-  additionalProperties:
-    $ref:
-      "#/$defs/converter"
-  $defs:
-    converter:
-      properties:
-        type:
-          enum:
-          - Directory
-          - File
-          - DictTextElement
-          - TextElement
-          - SimpleFile
-          - YamlFileCaosDBRecord
-          - MarkdownFile
-          - DictListElement
-          - DictDictElement
-          - DictFloatElement
-          - DictIntegerElement
-          - DictBooleanElement
-          - Definitions
-          - Dict
-          - JSONFile
-          - CSVTableConverter
-          - XLSXTableConverter
-          description: Type of this converter node.
-        match:
-          description: typically a regexp which is matched to a structure element name
-          type: string
-        match_name:
-          description: a regexp that is matched to the key of a key-value pair
-          type: string
-        match_value:
-          description: a regexp that is matched to the value of a key-value pair
-          type: string
-        records:
-          description: This field is used to define new records or to modify records which have been defined on a higher level.
-          type: object
-          properties:
-            parents:
-              description: Parents for this record are given here as a list of names.
-              type: array
-              items:
-                type: string
-            additionalProperties:
-              oneOf:
-              - type: object
-                properties:
-                  value:
-                    description: Dictionary notation for variable values. Values can be given by a variable which is indicated by an initial "$". Use "$$" for setting values actually starting with a dollar sign.
-                    type: string
-                  collection_mode:
-                    description: The collection mode defines whether the resulting property will be a single property or whether the values of multiple structure elements will be collected either into a list or a multiproperty.
-                    enum:
-                    - single
-                    - list
-                    - multiproperty
-                additionalProperties: false
-              - type: string
-                description: The short notation for values. Values can be given by a variable which is indicated by an initial "$". Use "$$" for setting values actually starting with a dollar sign. Multiproperties can be set using an initial "*" and list properties using an initial "+".
-        subtree:
-          type: object
-          additionalProperties:
-            $ref:
-              "#/$defs/converter"