Removed the unused TypesToServiceRef type

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

.changeset/dull-fishes-suffer.md

@@ -0,0 +1,5 @@
+---
+'@backstage/backend-plugin-api': patch
+---
+
+Removed the unused `TypesToServiceRef` type

packages/backend-plugin-api/api-report.md

@@ -525,11 +525,6 @@ export interface TokenManagerService {
   }>;
 }
 
-// @public (undocumented)
-export type TypesToServiceRef<T> = {
-  [key in keyof T]: ServiceRef<T[key]>;
-};
-
 // @public
 export interface UrlReaderService {
   readTree(url: string, options?: ReadTreeOptions): Promise<ReadTreeResponse>;

packages/backend-plugin-api/src/services/system/index.ts

@@ -17,7 +17,6 @@
 export type {
   ServiceRef,
   ServiceRefConfig,
-  TypesToServiceRef,
   ServiceFactory,
   PluginServiceFactoryConfig,
   RootServiceFactoryConfig,

packages/backend-plugin-api/src/services/system/types.ts

@@ -47,9 +47,6 @@ export type ServiceRef<
   $$ref: 'service';
 };
 
-/** @public */
-export type TypesToServiceRef<T> = { [key in keyof T]: ServiceRef<T[key]> };
-
 /** @public */
 export type ServiceFactory<TService = unknown> =
   | {