Greatly simplify vim configuration

.vimrc

@@ -4,10 +4,6 @@ if empty(glob('~/.vim/autoload/plug.vim'))
 endif
 call plug#begin()
 
-" Plug packages without settings {{{1
-Plug 'tpope/vim-surround'
-Plug 'tpope/vim-commentary'
-
 " Improved Incremental Search
 Plug 'haya14busa/incsearch.vim'
 map /  <Plug>(incsearch-forward)
@@ -19,78 +15,6 @@ map n  <Plug>(incsearch-nohl-n)
 map N  <Plug>(incsearch-nohl-N)
 map *  <Plug>(incsearch-nohl-*)
 
-" Syntax Checking {{{1
-Plug 'vim-syntastic/syntastic'
-let g:syntastic_check_on_wq = 0
-
-" netrw
-let g:netrw_liststyle = 3
-let g:netrw_banner = 1
-
-" Ctrl-p {{{1
-Plug 'kien/ctrlp.vim'
-let g:ctrlp_custom_ignore = '\v[\/]\.(git|hg|svn)$'
-set wildignore+=*/tmp/*,*.so,*.swp,*.zip
-let g:ctrlp_user_command = { 'types': { 1: ['.git', 'cd %s && git ls-files . -co --exclude-standard'], }, 'fallback': 'find %s -type f' }
-
-" JSON Support {{{1
-Plug 'elzr/vim-json'
-let g:vim_json_syntax_conceal = 0
-
-" Tmux Integration {{{1
-Plug 'christoomey/vim-tmux-navigator'
-nnoremap <silent> <C-Left> :TmuxNavigateLeft<cr>
-nnoremap <silent> <C-Down> :TmuxNavigateDown<cr>
-nnoremap <silent> <C-Up> :TmuxNavigateUp<cr>
-nnoremap <silent> <C-Right> :TmuxNavigateRight<cr>
-
-" Color Scheme {{{1
-Plug 'altercation/vim-colors-solarized'
-let g:solarized_termcolors=256
-let g:solarized_termtrans=1
-let g:solarized_contrast="normal"
-let g:solarized_visibility="normal"
-set background=light
-colorscheme solarized
-highlight ColorColumn ctermbg=0 guibg=#eee8d5
-
-" DelimitMate {{{1
-Plug 'Raimondi/delimitMate'
-let delimitMate_expand_cr = 1
-
-" Airline {{{1
-Plug 'vim-airline/vim-airline'
-Plug 'vim-airline/vim-airline-themes'
-let g:airline_theme='solarized'
-let g:airline_powerline_fonts = 1
-let g:airline#extensions#tabline#enabled = 1 " Tab bar at top
-if !exists('g:airline_symbols')
-      let g:airline_symbols = {}
-  endif
-  let g:airline_symbols.space = "\ua0"
-if has('statusline')
-    set laststatus=2
-    set statusline=%<%f\                     " Filename
-    set statusline+=%w%h%m%r                 " Options
-    set statusline+=\ [%{&ff}/%Y]            " Filetype
-    set statusline+=\ [%{getcwd()}]          " Current dir
-    set statusline+=%=%-14.(%l,%c%V%)\ %p%%  " Right aligned file nav info
-endif
-
-" Golang Support {{{1
-Plug 'fatih/vim-go'
-au FileType go nmap <Leader>gi <Plug>(go-info)
-au FileType go nmap <Leader>gl <Plug>(go-metalinter)
-let g:go_highlight_types = 1
-let g:go_highlight_build_constraints = 1
-let g:go_auto_type_info = 0
-let g:go_fmt_command = "goimports"
-let g:go_metalinter_autosave = 1
-let g:go_metalinter_autosave_enabled = ['vet', 'golint', 'errcheck', 'varcheck']
-let g:go_metalinter_enabled = ['vet', 'golint', 'errcheck', 'varcheck', 'ineffassign', 'megacheck', 'interfacer', 'maligned']
-let g:go_metalinter_deadline = '20s'
-
-
 call plug#end()
 filetype plugin indent on
 
@@ -108,12 +32,8 @@ highlight clear CursorLineNr    " Remove highlight color from current line numbe
 highlight clear SignColumn      " SignColumn should match background
 highlight clear LineNr          " Current line number row will have same background color in relative mode
 set textwidth=80
-au FileType json setlocal textwidth=150
 set colorcolumn=+1
 
-set list                        " Highlight white-space characters
-set listchars=tab:›\ ,trail:•,extends:#,nbsp:. " but only the ones we don't want
-
 " Splits {{{1
 map <C-J> <C-W>j<C-W>_
 map <C-K> <C-W>k<C-W>_
@@ -146,13 +66,6 @@ if has('persistent_undo')
     set undoreload=10000        " Maximum number lines to save for undo on a buffer reload
 endif
 
-" Git {{{1
-
-au FileType gitcommit set tw=72 " Override the line length for git commits
-
-" Always start the cursor at the top left corner in a commit message
-au FileType gitcommit au! BufEnter COMMIT_EDITMSG call setpos('.', [0, 1, 1, 0])
-
 " Other Settings {{{1
 
 set history=1000          " Greatly increase the size of the history (from 20)
@@ -165,14 +78,3 @@ xnoremap & :&&<CR>        " loses the flags, this fixes that.
 
 let g:clang_user_options='|| exit 0'
 
-set wildmenu                    " Show a menu rather than auto-completing
-
-" autocompletion
-:inoremap <C-j> <Esc>/[)}"'\]>]<CR>:nohl<CR>a
-" Enable omni completion.
-autocmd FileType css setlocal omnifunc=csscomplete#CompleteCSS
-autocmd FileType html,markdown setlocal omnifunc=htmlcomplete#CompleteTags
-autocmd FileType javascript setlocal omnifunc=javascriptcomplete#CompleteJS
-autocmd FileType python setlocal omnifunc=pythoncomplete#Complete
-autocmd FileType xml setlocal omnifunc=xmlcomplete#CompleteTags
-