Remove /usr/local/share/python from PATH

brew doctor:

    Warning: /usr/local/share/python is not needed in PATH.

    Formerly homebrew put Python scripts you installed via `pip` or
    `pip3` (or `easy_install`) into that directory above but now it can
    be removed from your PATH variable.

    Python scripts will now install into /usr/local/bin.
Remove `-A` from `ls` alias

I don't need to see my dotfiles all the time.