chore: remove unused var

Author: aditya

src/client.ts

@@ -5,7 +5,7 @@ import * as https from 'https';
 import * as axios from 'axios';
 import * as Faye from 'faye';
 import { jwtDecode } from 'jwt-decode';
-import AxiosProgressEvent, { AxiosRequestConfig, AxiosResponse } from 'axios';
+import AxiosProgressEvent, { AxiosResponse } from 'axios';
 
 import { Personalization } from './personalization';
 import { Collections } from './collections';