(advice-remove 'diff-hl-modified-p #'diff-hl-flydiff/modified-p)
(advice-remove 'diff-hl-changes-buffer #'diff-hl-flydiff-buffer-with-head)
(advice-remove 'diff-hl-modified-p #'diff-hl-flydiff/modified-p)
(advice-remove 'diff-hl-changes-buffer #'diff-hl-flydiff-buffer-with-head)