NetworkManager nmtui adds many redundant parameters to BONDING_OPTS.

Issue

• When nmtui makes a bonding interface, it adds many redundant parameters to BONDING_OPTS.

nmtui sample:

# nmtui
Edit a connection -> <Add> -> Bond 

Profile name bond0
Device bond0

Mode <Active Backup>
Primary
Link monitoring <MII (recommended)>                                
Monitoring frequency 100_______ ms
Link up delay 0_________ ms
Link down delay 0_________ ms
Cloned MAC address ________________________________________    

# grep BONDING_OPTS /etc/sysconfig/network-scripts/ifcfg-bond0
BONDING_OPTS="ad_select=stable all_slaves_active=0 arp_all_targets=any arp_interval=0 arp_validate=none downdelay=0 fail_over_mac=none lp_interval=1 miimon=100 min_links=0 mode=active-backup num_grat_arp=1 num_unsol_na=1 primary_reselect=always resend_igmp=1 updelay=0 use_carrier=1 xmit_hash_policy=layer2"