fix double definition of pytest_configure

Author: daa

pytest_twisted.py

@@ -22,11 +22,6 @@ class _instances:
     reactor = None
 
 
-def pytest_configure():
-    pytest.inlineCallbacks = inlineCallbacks
-    pytest.blockon = blockon
-
-
 def blockon(d):
     if _config.external_reactor:
         return block_from_thread(d)
@@ -185,4 +180,6 @@ def pytest_addoption(parser):
 
 
 def pytest_configure(config):
+    pytest.inlineCallbacks = inlineCallbacks
+    pytest.blockon = blockon
     reactor_installers[config.getoption("reactor")]()