travis: Disable feature_block in tsan run
travis: Disable feature_block in tsan run

Former-commit-id: 5bc9bca49b9038e46ca9922e8c19109049426d5e
syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin