I just updated to the latest commit on emacs master and tried out package-autoremove.
That suggested removing 3 packages (symon, minibuffer-line, git-timemachine), out of which I actually use 2: minibuffer-line, git-timemachine.
For example, I have this in my init:
;; Display date+time in the minibuffer instead of in the mode-line
(use-package minibuffer-line
:if (null modi/show-date-time-in-mode-line)
:defer 1 ; to prevent 'Invalid face reference: minibuffer-line'
; when launching emacsclient
:init
(progn
(setq minibuffer-line-format '((:eval (format-time-string "%l:%M %b %d %a")))))
:config
(progn
(set-face-attribute 'minibuffer-line nil :inherit font-lock-type-face)
(minibuffer-line-mode)))