Take out configure_payments hack

With the upgrade to the balanced library in #2036 we no longer need this
workaround for balanced/balanced-python#5.
Removing at this point because I'm ripping out all of our direct
os.environ usage and this applies.

configure-aspen.py

@@ -8,7 +8,7 @@
 
 import gittip
 import gittip.wireup
-from gittip import canonize, configure_payments
+from gittip import canonize
 from gittip.security import authentication, csrf, x_frame_options
 from gittip.utils import cache_static, timer
 
@@ -145,7 +145,6 @@ def scab_body_onto_response(response):
  , algorithm['raise_200_for_OPTIONS']
 
  , canonize
- , configure_payments
  , authentication.inbound
  , csrf.inbound
  , add_stuff_to_context

gittip/__init__.py

@@ -2,7 +2,6 @@
 """
 import datetime
 import locale
-import os
 from decimal import Decimal
 
 import aspen
@@ -93,12 +92,6 @@ def canonize(request):
  request.redirect(url)
 
 
-def configure_payments(request):
- # Work-around for https://github.com/balanced/balanced-python/issues/5
- import balanced
- balanced.configure(os.environ['BALANCED_API_SECRET'])
-
-
 def outbound(request, response, website):
  version = website.version