Enabled Gmail web OAuth flow again

app/src/main/java/eu/faircode/email/ServiceAuthenticator.java

@@ -145,9 +145,6 @@ public class ServiceAuthenticator extends Authenticator {
     private static void OAuthRefresh(Context context, String id, String user, AuthState authState, boolean forceRefresh)
             throws MessagingException {
         try {
-            if ("gmail".equals(id) && !BuildConfig.DEBUG)
-                return;
-
             long now = new Date().getTime();
             Long expiration = authState.getAccessTokenExpirationTime();
             boolean needsRefresh = (expiration != null && expiration < now);

app/src/main/res/xml/providers.xml

@@ -24,7 +24,7 @@
             askAccount="true"
             authorizationEndpoint="https://accounts.google.com/o/oauth2/auth"
             clientId="803253368361-11ias0ee6bqhvdi4f21fs1lh7fsb0il2.apps.googleusercontent.com"
-            enabled="false"
+            enabled="true"
             privacy="https://policies.google.com/privacy"
             prompt="consent"
             redirectUri="eu.faircode.email:/"