implement route removal

src/repositories/UnoptimizedInMemoryRepository.ts

@@ -156,6 +156,13 @@ export class UnoptimizedInMemoryRepository implements GetterSetterRepository {
   }
 
   public async removeRouteIfExists(routeId: string): Promise<IRoute | null> {
+    const index = this.findEntityIndexById(routeId, this.routes);
+    if (index > -1) {
+      const routeToReturn = this.routes[index];
+      this.routes.splice(index, 1);
+      return routeToReturn;
+    }
+
     return null;
   }