diff --git a/zipline/protocol.py b/zipline/protocol.py
index 562a18bb..b5318b18 100644
--- a/zipline/protocol.py
+++ b/zipline/protocol.py
@@ -14,7 +14,7 @@
 # limitations under the License.
 
 
-from utils.protocol_utils import Enum, ndict, namelookup
+from utils.protocol_utils import Enum, ndict
 
 # Datasource type should completely determine the other fields of a
 # message with its type.
@@ -34,9 +34,3 @@ TRANSFORM_TYPE = ndict({
     'PASSTHROUGH': 'PASSTHROUGH',
     'EMPTY': ''
 })
-
-
-FINANCE_COMPONENT = namelookup({
-    'TRADING_CLIENT': 'TRADING_CLIENT',
-    'PORTFOLIO_CLIENT': 'PORTFOLIO_CLIENT',
-})
diff --git a/zipline/utils/protocol_utils.py b/zipline/utils/protocol_utils.py
index 15786db1..9a085d3f 100644
--- a/zipline/utils/protocol_utils.py
+++ b/zipline/utils/protocol_utils.py
@@ -148,28 +148,3 @@ class ndict(MutableMapping):
                 #return False
 
         #return True
-
-
-# This is not neccesarily the most intuitive construction, but
-# we're aiming for raw performance rather than readability. So
-# we do things that we would not normally do in business logic.
-def namelookup(dct):
-    ks = dct.keys()
-    vs = dct.values()
-    dct = {}
-
-    class _lookup:
-        __slots__ = ks
-
-        def __init__(self):
-            for k, v in zip(ks, vs):
-                setattr(self, k, v)
-            self.__setattr__ = self.locked
-
-        def locked(self, k, v):
-            raise Exception('Name lookups are fixed at init.')
-
-        def __repr__(self):
-            return '<namelookup %s>' % self.__slots__
-    del dct
-    return _lookup()