Revert "Add function 'f' to open directories in finder."
Revert "Add function 'f' to open directories in finder."

This reverts commit 3f1e7a5acc9e685290fcb6f9f87e3ed631d19c6e.

This was a duplicate of the existing function 'o'.

mischah/dotfiles,mischah/dotfiles,mischah/dotfiles