Remove redundant code for Python 2.6

Author: hugovk

cachecontrol/caches/redis_cache.py

@@ -4,16 +4,6 @@
 from cachecontrol.cache import BaseCache
 
 
-def total_seconds(td):
-    """Python 2.6 compatability"""
-    if hasattr(td, 'total_seconds'):
-        return int(td.total_seconds())
-
-    ms = td.microseconds
-    secs = (td.seconds + td.days * 24 * 3600)
-    return int((ms + secs * 10**6) / 10**6)
-
-
 class RedisCache(BaseCache):
 
     def __init__(self, conn):
@@ -27,7 +17,7 @@ def set(self, key, value, expires=None):
             self.conn.set(key, value)
         else:
             expires = expires - datetime.utcnow()
-            self.conn.setex(key, total_seconds(expires), value)
+            self.conn.setex(key, int(expires.total_seconds()), value)
 
     def delete(self, key):
         self.conn.delete(key)