Remove unused getUpgradesDirectories function

extensions/ql-vscode/src/databases/local-databases.ts

@@ -1,6 +1,3 @@
-import { dirname } from "path";
-import * as vscode from "vscode";
-
 export { DatabaseContentsWithDbScheme } from "./local-databases/database-contents";
 export {
   DatabaseChangedEvent,
@@ -19,15 +16,3 @@ export { DatabaseResolver } from "./local-databases/database-resolver";
  * The source of truth of the current state resides inside the
  * `DatabaseManager` class below.
  */
-
-/**
- * Get the set of directories containing upgrades, given a list of
- * scripts returned by the cli's upgrade resolution.
- */
-export function getUpgradesDirectories(scripts: string[]): vscode.Uri[] {
-  const parentDirs = scripts.map((dir) => dirname(dir));
-  const uniqueParentDirs = new Set(parentDirs);
-  return Array.from(uniqueParentDirs).map((filePath) =>
-    vscode.Uri.file(filePath),
-  );
-}