request-wrapper: don't collect at app level, we can do this at gunicorn level with better results.

vcsserver/tweens/request_wrapper.py

@@ -39,7 +39,6 b' class RequestWrapperTween(object):'
     def __init__(self, handler, registry):
         self.handler = handler
         self.registry = registry
-        self.gc_max_requests = 25
 
         # one-time configuration code goes here
 
@@ -56,11 +55,6 b' class RequestWrapperTween(object):'
                 count, '127.0.0.1', request.environ.get('REQUEST_METHOD'),
                 safe_str(get_access_path(request)), total, get_user_agent(request.environ))
 
-        if self.gc_max_requests and count % self.gc_max_requests == 0:
-            log.debug('Performing gc.collect now')
-            gc_count = gc.collect()
-            log.debug('gc collection freed %s objects', gc_count)
-
         return response