dApp staking - crate visibility (#1345)

* dApp staking - crate visibility

* Remaining changes

* Integration test fix

Author: Dinonard

pallets/dapp-staking/src/test/tests_types.rs

@@ -86,17 +86,6 @@ fn period_info_basic_checks() {
     assert!(info.is_next_period(next_subperiod_start_era + 1));
 }
 
-#[test]
-fn protocol_state_default() {
-    let protocol_state = ProtocolState::default();
-
-    assert_eq!(protocol_state.era, 0);
-    assert_eq!(
-        protocol_state.next_era_start, 1,
-        "Era should start immediately on the first block"
-    );
-}
-
 #[test]
 fn protocol_state_basic_checks() {
     let mut protocol_state = ProtocolState::default();