oh-my-bash remove hostname

agnoster.theme.sh

##
## You can remove display hostname partion
##
## Path: ~/.oh-my-bash/themes/agnoster/agnoster.theme.sh
##
## modify prompt_context() function
##

prompt_context() {
    local user=$(whoami)

    if [[ $user != $DEFAULT_USER || -n $SSH_CLIENT ]]; then
        # >>> Original
        #prompt_segment black default "$user@\h"
        # >>> Modified
        prompt_segment black default "$user"
    fi
}