removed 1st edition code

19-coroutine/coroutil.py

@@ -1,12 +0,0 @@
-# BEGIN CORO_DECO
-from functools import wraps
-
-def coroutine(func):
-    """Decorator: primes `func` by advancing to first `yield`"""
-    @wraps(func)
-    def primer(*args,**kwargs):  # <1>
-        gen = func(*args,**kwargs)  # <2>
-        next(gen)  # <3>
-        return gen  # <4>
-    return primer
-# END CORO_DECO