feat: update logistration pages (#591)

- removed few unused classes
- updated login page to rely on error messages generated
from the frontend only.

VAN-138

src/data/utils/dataUtils.js

@@ -1,17 +1,8 @@
 // Utility functions
-
 import * as QueryString from 'query-string';
 
 import { AUTH_PARAMS } from '../constants';
 
-export default function processLink(link) {
-  let matches;
-  link.replace(/(.*?)<a href=["']([^"']*).*?>([^<]+)<\/a>(.*)/g, function () { // eslint-disable-line func-names
-    matches = Array.prototype.slice.call(arguments, 1, 5); // eslint-disable-line  prefer-rest-params
-  });
-  return matches;
-}
-
 export const getTpaProvider = (tpaHintProvider, primaryProviders, secondaryProviders) => {
   let tpaProvider = null;
   let skipHintedLogin = false;

src/data/utils/dataUtils.test.js

@@ -1,18 +1,5 @@
 import { LOGIN_PAGE } from '../constants';
-import processLink, { updatePathWithQueryParams } from './dataUtils';
-
-describe('processLink', () => {
-  it('should use the provided processLink function to', () => {
-    const expectedHref = 'http://test.server.com/';
-    const expectedText = 'test link';
-    const link = `<a href="${expectedHref}">${expectedText}</a>`;
-
-    const matches = processLink(link);
-
-    expect(matches[1]).toEqual(expectedHref);
-    expect(matches[2]).toEqual(expectedText);
-  });
-});
+import { updatePathWithQueryParams } from './dataUtils';
 
 describe('updatePathWithQueryParams', () => {
   it('should append query params into the path', () => {

src/data/utils/index.js

@@ -1,5 +1,4 @@
 export {
-  default,
   getTpaProvider,
   getTpaHint,
   updatePathWithQueryParams,