refactor(git)!: remove HIDE_TABS environment variable
refactor(git)!: remove HIDE_TABS environment variable

I won't remember it in the long term; better to stick with something
generic like:

    git log -p | cat | less

to disable the filtering.

wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent