I am trying to completely disable the zsh completion system.
I removed the following from my `.zshrc`:
    autoload -Uz compinit
    compinit
Still it is giving some suggestions.
I used:
    zstyle ':completion:*' use-compctl false
Still it is giving some suggestions.
For example, 
% ls<TAB>
ls            lsblk         lshw          lslocks       lsmod   .....
I guess I am looking for something like 
    zstyle ':completion:*' use-compsys false
So, what can I do to completely disable zsh completion system.