Remove deprecated pep8 plugin

Syntastic should take care of it now

dotfiles/vim/bundle/pep8/ftplugin/python/pep8.vim

@@ -1,56 +0,0 @@
-" To change mapping, just put
-" let g:pep8_map='whatever'
-" in your .vimrc
-" To change the color of
-function! <SID>Pep8()
-  set lazyredraw
-  " Close any existing cwindows.
-  cclose
-  let l:grepformat_save = &grepformat
-  let l:grepprogram_save = &grepprg
-  set grepformat&vim
-  set grepformat&vim
-  let &grepformat = '%f:%l:%m'
-  let &grepprg = 'pep8 --repeat'
-  if &readonly == 0 | update | endif
-  silent! grep! %
-  let &grepformat = l:grepformat_save
-  let &grepprg = l:grepprogram_save
-  let l:mod_total = 0
-  let l:win_count = 1
-  " Determine correct window height
-  windo let l:win_count = l:win_count + 1
-  if l:win_count <= 2 | let l:win_count = 4 | endif
-  windo let l:mod_total = l:mod_total + winheight(0)/l:win_count |
-        \ execute 'resize +'.l:mod_total
-  " Open cwindow
-  execute 'belowright copen '.l:mod_total
-  nnoremap <buffer> <silent> c :cclose<CR>
-  set nolazyredraw
-  redraw!
-  let tlist=getqflist() ", 'get(v:val, ''bufnr'')')
-  if empty(tlist)
-	  if !hlexists('GreenBar')
-		  hi GreenBar term=reverse ctermfg=white ctermbg=darkgreen guifg=white guibg=darkgreen
-	  endif
-	  echohl GreenBar
-	  echomsg "PEP8 correct"
-	  echohl None
-	  cclose
-  endif
-endfunction
-
-  if !exists('g:pep8_map')
-    let g:pep8_map='<F8>'
-  endif
-if ( !hasmapto('<SID>PEP8()') && (maparg(g:pep8_map) == '') )
-  exe 'nnoremap <silent> '. g:pep8_map .' :call <SID>Pep8()<CR>'
-"  map <F8> :call <SID>Pep8()<CR>
-"  map! <F8> :call <SID>Pep8()<CR>
-else
-  if ( !has("gui_running") || has("win32") )
-    echo "Python PEP8 Error: No Key mapped.\n".
-          \ g:pep8_map ." is taken and a replacement was not assigned."
-  endif
-endif
-