backend-plugin-api: refactor to remove createHttpPluginRouterMiddleware

Co-authored-by: Fredrik Adelöw <freben@gmail.com>
Co-authored-by: Carl-Erik Bergström <cbergstrom@spotify.com>
Co-authored-by: blam <ben@blam.sh>
Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/backend-plugin-api/src/services/definitions/HttpAuthService.ts

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import { Request, Response, Handler } from 'express';
+import { Request, Response } from 'express';
 import {
   BackstageUserCredentials,
   BackstageServiceCredentials,
@@ -38,8 +38,6 @@ export type BackstageCredentialTypes = {
 
 /** @public */
 export interface HttpAuthService {
-  createHttpPluginRouterMiddleware(): Handler;
-
   credentials<TAllowed extends keyof BackstageCredentialTypes>(
     req: Request,
     options: {