chore(di): Remove static method InjectorService.service

BREAKING CHANGE: Remove static method InjectorService.service. Use registerService instead of.

packages/di/src/services/InjectorService.ts

@@ -18,7 +18,7 @@ import {InjectionScopeError} from "../errors/InjectionScopeError";
 import {IInjectableMethod, IProvider, ProviderScope} from "../interfaces";
 import {IInjectableProperties, IInjectablePropertyService, IInjectablePropertyValue} from "../interfaces/IInjectableProperties";
 import {ProviderType} from "../interfaces/ProviderType";
-import {GlobalProviders, registerFactory, registerProvider, registerService} from "../registries/ProviderRegistry";
+import {GlobalProviders, registerFactory, registerProvider} from "../registries/ProviderRegistry";
 
 let globalInjector: any;
 
@@ -663,38 +663,6 @@ export class InjectorService extends Map<RegistryKey, Provider<any>> {
     return globalInjector.load();
   }
 
-  /**
-   * Add a new service in the registry. This service will be constructed when `InjectorService`will loaded.
-   *
-   * #### Example
-   *
-   * ```typescript
-   * import {InjectorService} from "@tsed/common";
-   *
-   * export default class MyFooService {
-   *     constructor(){}
-   *     getFoo() {
-   *         return "test";
-   *     }
-   * }
-   *
-   * InjectorService.service(MyFooService);
-   * const injector = new InjectorService();
-   * injector.load();
-   *
-   * const myFooService = injector.get<MyFooService>(MyFooService);
-   * myFooService.getFoo(); // test
-   * ```
-   *
-   * @param target The class to add in registry.
-   * @deprecated Use registerService or registerFactory instead of.
-   */
-  @Deprecated("Use registerService() util instead of")
-  /* istanbul ignore next */
-  static service(target: any) {
-    return registerService(target);
-  }
-
   /**
    * Add a new factory in `InjectorService` registry.
    *