debian: removed forced duplicated README and LICENCE installation
debian: removed forced duplicated README and LICENCE installation

Former-commit-id: 416e0014274895a86e30fefcf16c336902dd935c [formerly 5c9aca0fac67ab19e2c268ba7677887266e2505a]
Former-commit-id: a992d1c8fa1a5d73efb5f76724eeaa839dbb0c56
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine