Exiting the CLI after disabling and clearing history will clear content of .jboss-cli-history

 --disable    - will disable history expansion (but will not clear the
                previously recorded history);
 --clear      - will clear the in-memory history (but not the file one).

[pkremens@dhcp-10-40-5-180 ~]$ wc ~/.jboss-cli-history 
 4  6 44 /home/pkremens/.jboss-cli-history

[standalone@localhost:9990 /] history --disable
[standalone@localhost:9990 /] history --clear
[standalone@localhost:9990 /] exit

[pkremens@dhcp-10-40-5-180 ~]$ wc ~/.jboss-cli-history 
0 0 0 /home/pkremens/.jboss-cli-history