firewall: remove unused regexp

circle/firewall/fields.py

@@ -26,7 +26,6 @@ from netaddr import (IPAddress, IPNetwork, AddrFormatError, ZEROFILL,
 import re
 import re
 
 
 
 
-mac_re = re.compile(r'^([0-9a-fA-F]{2}(:|$)){6}$')
 alfanum_re = re.compile(r'^[A-Za-z0-9_-]+$')
 alfanum_re = re.compile(r'^[A-Za-z0-9_-]+$')
 domain_re = re.compile(r'^([A-Za-z0-9_-]\.?)+$')
 domain_re = re.compile(r'^([A-Za-z0-9_-]\.?)+$')
 ipv4_re = re.compile('^([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)$')
 ipv4_re = re.compile('^([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)$')