Removed a needless timeout to a condition wait call. Using timeouts

can cause signidficant delays, especially on systems with very
course-grained sleeps, like most linux systems.

Extracted from rev 73871 in svn://svn.zope.org/repos/main/ZODB/trunk/src/ZEO
(Jim Fulton did the extracting and handed me the diff on IRC).

src/ZEO/zrpc/connection.py

@@ -439,6 +439,9 @@ class Connection(smac.SizedMessageAsyncConnection, object):
         self.closed = True
         self.__super_close()
         self.close_trigger()
+        self.replies_cond.acquire()
+        self.replies_cond.notifyAll()
+        self.replies_cond.release()
 
     def close_trigger(self):
         # Overridden by ManagedClientConnection.
@@ -734,7 +737,7 @@ class Connection(smac.SizedMessageAsyncConnection, object):
                                  (msgid, short_repr(reply)), level=TRACE)
                     return reply
                 if self.is_async():
-                    self.replies_cond.wait(10.0)
+                    self.replies_cond.wait()
                 else:
                     self.replies_cond.release()
                     try: