Don't modify registration IDs from the "set account attributes" endpoint

service/src/main/java/org/whispersystems/textsecuregcm/controllers/AccountController.java

@@ -230,8 +230,6 @@ public class AccountController {
         d.setName(attributes.getName());
         d.setLastSeen(Util.todayInMillis());
         d.setCapabilities(attributes.getCapabilities());
-        d.setRegistrationId(attributes.getRegistrationId());
-        d.setPhoneNumberIdentityRegistrationId(attributes.getPhoneNumberIdentityRegistrationId());
         d.setUserAgent(userAgent);
       });