a few ways if you DONT normally use the ignore list:

1) //ignore -wr | //ignore -r (will clean both server based ignores and global ignores)
2) ALT + B --> Control (tab) --> Ignore (dropdown list) --> CTRL + A --> Delete --> Hit OK

ALSO:

3) As above except you can choose any combination you want to delete in case you DO normally use the ignore list


Those who fail history are doomed to repeat it