Revert "migration to jdk-11 (add nrt branch)"
Revert "migration to jdk-11 (add nrt branch)"

This reverts commit 7d0150fee970f67a95571dc66ed011ceb6190fd9.

LedgerHQ/lib-ledger-core,LedgerHQ/lib-ledger-core,LedgerHQ/lib-ledger-core,LedgerHQ/lib-ledger-core,LedgerHQ/lib-ledger-core,LedgerHQ/lib-ledger-core,LedgerHQ/lib-ledger-core