Revert "Fixing silent request error cleanup"

This reverts commit cfaabe5.

Author: pkanher617

lib/msal-browser/src/app/PublicClientApplication.ts

@@ -448,7 +448,6 @@ export class PublicClientApplication {
             // Handle response from hash string.
             return await silentHandler.handleCodeResponse(hash);
         } catch (e) {
-            this.browserStorage.cleanRequest();
             throw e;
         }
     }

samples/msal-browser-samples/VanillaJSTestApp2.0/app/ssoSilent/authConfig.js

@@ -25,12 +25,13 @@ const graphConfig = {
 // Add here scopes for access token to be used at MS Graph API endpoints.
 const tokenRequest = {
     scopes: ["Mail.Read", "openid", "profile"],
+    loginHint: "[email protected]",
     redirectUri: "http://localhost:30662/",
     forceRefresh: false // Set this to "true" to skip a cached token and go to the server to get a new token
 };
 
 const silentRequest = {
     scopes: ["openid", "profile", "User.Read", "Mail.Read"],
     redirectUri: "http://localhost:30662/",
-    loginHint: "[email protected]"
+    loginHint: "[email protected]"
 };