Remove some more c++ helper functions

capnp/helpers/capabilityHelper.h

@@ -89,17 +89,6 @@ public:
                          capnp::CallContext< capnp::DynamicStruct, capnp::DynamicStruct> context);
 };
 
-inline capnp::DynamicCapability::Client new_client(capnp::InterfaceSchema & schema, PyObject * server) {
-  return capnp::DynamicCapability::Client(kj::heap<PythonInterfaceDynamicImpl>(schema, server));
-}
-inline capnp::DynamicValue::Reader new_server(capnp::InterfaceSchema & schema, PyObject * server) {
-  return capnp::DynamicValue::Reader(kj::heap<PythonInterfaceDynamicImpl>(schema, server));
-}
-
-inline capnp::Capability::Client server_to_client(capnp::InterfaceSchema & schema, PyObject * server) {
-  return kj::heap<PythonInterfaceDynamicImpl>(schema, server);
-}
-
 class PyAsyncIoStream: public kj::AsyncIoStream {
 public:
   kj::Own<PyRefCounter> protocol;

capnp/helpers/non_circular.pxd

@@ -2,8 +2,6 @@ from cpython.ref cimport PyObject
 from libcpp cimport bool
 
 cdef extern from "capnp/helpers/capabilityHelper.h":
-    cppclass PythonInterfaceDynamicImpl:
-        PythonInterfaceDynamicImpl(PyObject *)
     void reraise_kj_exception()
     cdef cppclass PyRefCounter:
         PyRefCounter(PyObject *)