revert adding FormItem for now

Signed-off-by: Panos Vagenas <[email protected]>

Author: vagenas

docling_core/types/doc/document.py

@@ -1297,12 +1297,6 @@ class KeyValueItem(DocItem):
     label: typing.Literal[DocItemLabel.KEY_VALUE_REGION] = DocItemLabel.KEY_VALUE_REGION
 
 
-class FormItem(DocItem):
-    """FormItem."""
-
-    label: typing.Literal[DocItemLabel.FORM] = DocItemLabel.FORM
-
-
 ContentItem = Annotated[
     Union[
         TextItem,
@@ -1311,7 +1305,6 @@ class FormItem(DocItem):
         PictureItem,
         TableItem,
         KeyValueItem,
-        FormItem,
     ],
     Field(discriminator="label"),
 ]

test/data/docling_document/unit/FormItem.yaml

@@ -18,7 +18,6 @@
     DoclingDocument,
     DocumentOrigin,
     FloatingItem,
-    FormItem,
     ImageRef,
     KeyValueItem,
     ListItem,
@@ -138,13 +137,6 @@ def verify(dc, obj):
             )
             verify(dc, obj)
 
-        elif dc is FormItem:
-            obj = dc(
-                label=DocItemLabel.FORM,
-                self_ref="#",
-            )
-            verify(dc, obj)
-
         else:
             raise RuntimeError(f"New derived class detected {dc.__name__}")