further improvements of the jedi import in tests

jedi/__init__.py

@@ -32,8 +32,4 @@ sys.path.insert(0, __path__[0])
 from .api import Script, NotFoundError, set_debug_function, _quick_complete
 from . import settings
 
-from . import api
-
-del api
-
 sys.path.pop(0)