Revert "DashboardController.cls added and modified Dashboard.page"

This reverts commit 512b91bbea95bff75542051488f1f5be24b1c783.
Revert "Modified Survey__c.object added Code property"

This reverts commit d1a29f87cf1c5944ae996b916c99131eb6fdd446, reversing
changes made to 512b91bbea95bff75542051488f1f5be24b1c783.