Vim: put bundle on (small) diet

These are plug-ins that I literally never use any more, nor do I
realistically expect to need them in the future, so they can go away.

There are some other plug-ins that I never really use, but which I
probably should (like ragtag, for example), so I'll leave them in for
now. Possible candidates for the never-use/rarely-use hit-list:

- emmet-vim (great idea, but I rarely feel the need for it)
- gocode (not really doing any Go development of late)
- tabular (I use it less often now due to style conventions at work)
- vim-dispatch (another great idea, but never use; lots of muscle memory
  in place for manually managing tmux splits)
- vim-golang (see above)
- vim-lawrencium (pale imitation of fugitive, and not really fast enough
  on enormous repos)
- vim-ragel (not something I use very often at all)
- vim-ragtag (see above)

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Vim: relocate vim-javascript submodule

It had a (cosmetic) typo in the path name.

Signed-off-by: Wincent Colaiuta <win@wincent.com>