Remove fish special grep config

Not needed since I use bash as a default shell and enter
fish manually.
Defer loading of auto-highlight-symbol
Defer loading of auto-complete
Defer loading of bookmark configuration
Defer loading of rainbow modes
Remove evil config for volatile highlight (not working)
Add visual star evil plugin
Defer loading of smartparens
Defer loading of recentf
Start scratch buffer in text mode

Speed up the startup of Emacs (avoid autoloads associated with
elisp mode)