Remove modeled-methods-legacy file

extensions/ql-vscode/src/model-editor/shared/modeled-methods-legacy.ts

@@ -1,16 +0,0 @@
-import { ModeledMethod } from "../modeled-method";
-
-/**
- * Converts a ModeledMethod[] to a single ModeledMethod for legacy usage. This function should always be used instead
- * of the trivial conversion to track usages of this conversion.
- *
- * This method should only be called inside a `postMessage` call. If it's used anywhere else, consider whether the
- * boundary is correct: the boundary should as close as possible to the extension host -> webview boundary.
- *
- * @param modeledMethods The ModeledMethod[]
- */
-export function convertToLegacyModeledMethod(
-  modeledMethods: ModeledMethod[],
-): ModeledMethod | undefined {
-  return modeledMethods[0];
-}