Remove old body on note and tasks (#13290)

Fixes: https://github.com/twentyhq/twenty/issues/13110

I'm deprecating note.body and task.body to remove confusion between body
and bodyV2

What will be left but should be done later to avoid breaking changes:
- re-add a body field in the graphql API only that points to the same
bodyV2 field in SQL (need to be handled in fields and filter for note
and task)
- (wait some time)
- remove bodyV2 field

packages/twenty-server/src/modules/task/standard-objects/task.workspace-entity.ts

@@ -72,16 +72,6 @@ export class TaskWorkspaceEntity extends BaseWorkspaceEntity {
   })
   title: string;
 
-  @WorkspaceField({
-    standardId: TASK_STANDARD_FIELD_IDS.body,
-    type: FieldMetadataType.RICH_TEXT,
-    label: msg`Body (deprecated)`,
-    description: msg`Task body`,
-    icon: 'IconFilePencil',
-  })
-  @WorkspaceIsNullable()
-  body: string | null;
-
   @WorkspaceField({
     standardId: TASK_STANDARD_FIELD_IDS.bodyV2,
     type: FieldMetadataType.RICH_TEXT_V2,