Get rid off useless iswitch-mode
Move tab and indent configs
Get rid off useless ring set
Remove useless exec-path config
Remove useless key bind for emacs mode
Delete useless dired configs

They are achieved on init-helm
Remove showing time
Clean up before save hook
Cleanup kill-emacs-hook
Remove magit configurations on editor.el
Comment out startup messages
Remove emacs-startup-hook to show agenda-list