Update index.d.ts

Author: xiaofan9

index.d.ts

@@ -1,7 +1,6 @@
 import { AxiosStatic } from "axios";
 import { App } from "vue";
 
-export declare function VAxios(app: App): AxiosStatic;
 declare module "@vue/runtime-core" {
   export interface ComponentCustomProperties {
     $http: AxiosStatic;