Fixed 3 retrieve warnings

[sf:retrieve] package.xml - Entity of type 'ApexClass' named
'SUP_RegistrationCtrl' cannot be found
[sf:retrieve] package.xml - Entity of type 'ApexPage' named
'SUP_Registration' cannot be found
[sf:retrieve] package.xml - Entity of type 'CustomObject' named
'Okta_Forgot_Password_Map__c' cannot be found