Drop obsolete Shutter screenshot app

Sadly the project died and I haven't found any replacement.

Thanks for all the pixels!

dotfiles/config/i3/config

@@ -452,7 +452,6 @@ bindsym --release $mod+Ctrl+bracketright    exec "xdotool .config/i3/macros/brac
 ## Less smart apps                                                      ##
 #------------------------------------------------------------------------#
 
-for_window [class="Shutter"]    floating enable
 for_window [class="Orage"]      floating enable
 
 
@@ -465,4 +464,3 @@ exec "dunst"
 exec "urxvt -e weechat"
 exec "nm-applet"
 exec "blueman-applet"
-exec "shutter --min_at_startup"