Remove unneeded dependency in tox.ini

Author: cburgdorf

tox.ini

@@ -45,7 +45,7 @@ commands=
     native-state-metropolis: pytest {posargs:tests/json-fixtures/test_state.py -k Metropolis}
     lightchain_integration: pytest --integration {posargs:tests/trinity/integration/test_lightchain_integration.py}
 
-deps = .[eth,p2p,trinity,eth-extra,test]
+deps = .[p2p,trinity,eth-extra,test]
 
 basepython =
     py35: python3.5