I don't want to remember history
No longer use them

built-in diff, and third-party wordcount feature that showed word count at statusbar.

I use `g Ctrl-g` to count words
vim-session plugin related settings

session files to be stored under Dropbox
session will be autosaved but not autoloaded
Revert "My eyes concentrate easier when lines are scrolled at top"

This reverts commit 481300b4b398b27008123728943b6751ed2cd8a6.

I wanted this for reviewing translation, but they were better stored
within as a session for that project.