unneeded python-gflags and python-matplotlib packages dependencies removed
unneeded python-gflags and python-matplotlib packages dependencies removed


Former-commit-id: 936b5eb0e254f607675dcc5e1cce666700a72388 [formerly 936b5eb0e254f607675dcc5e1cce666700a72388 [formerly 280519102242d132fe21af76a85d35ce099d0a5b]]
Former-commit-id: 265a0d749f92c4abded8e950ead5c59e74bc8dad
Former-commit-id: 3bb112d5ff1695bffdd69b52d35e08f0194214ac
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine