These keybindings were only here to 'override' the keys set by
evil-integration's overriding map. Since evil-collection expects
evil-integration to be disabled, these can now be removed.
Since ibuffer is an overriding-map in evil-integration.el, we need to
override these keys for now.
Once we disable the evil-integration of evil, we can remove these
extra keybindings.
James Nguyen
Jay Kamat