Removing deprecated Restorer and ezRestore references

- Not recommended to be used in new designs
- Just pollutes warning messages during compilation (hiding ones that
should be fixed)
- Updated test code to use bootstrap
- Sped up some of the test code that was just sleeping while waiting for
the server (now polling for the socket)

test/test_threads.py

@@ -44,7 +44,7 @@ class Server(test_capability_capnp.TestInterface.Server):
     '''
     Server
     '''
-    def __init__(self, val=1):
+    def __init__(self, val=100):
         self.val = val
 
     def foo(self, i, j, **kwargs):
@@ -54,19 +54,6 @@ class Server(test_capability_capnp.TestInterface.Server):
         return str(i * 5 + self.val)
 
 
-class SimpleRestorer(test_capability_capnp.TestSturdyRefObjectId.Restorer):
-    '''
-    SimpleRestorer
-    '''
-
-    def restore(self, ref_id):
-        '''
-        Restore
-        '''
-        assert ref_id.tag == 'testInterface'
-        return Server(100)
-
-
 @pytest.mark.skipif(
     platform.python_implementation() == 'PyPy',
     reason="pycapnp's GIL handling isn't working properly at the moment for PyPy"
@@ -81,8 +68,7 @@ def test_using_threads():
     read, write = socket.socketpair(socket.AF_UNIX)
 
     def run_server():
-        restorer = SimpleRestorer()
-        _ = capnp.TwoPartyServer(write, restorer)
+        _ = capnp.TwoPartyServer(write, bootstrap=Server())
         capnp.wait_forever()
 
     server_thread = threading.Thread(target=run_server)
@@ -90,10 +76,7 @@ def test_using_threads():
     server_thread.start()
 
     client = capnp.TwoPartyClient(read)
-
-    ref = test_capability_capnp.TestSturdyRefObjectId.new_message(tag='testInterface')
-    cap = client.restore(ref)
-    cap = cap.cast_as(test_capability_capnp.TestInterface)
+    cap = client.bootstrap().cast_as(test_capability_capnp.TestInterface)
 
     remote = cap.foo(i=5)
     response = remote.wait()