remove some vim plugins

.vimrc

@@ -11,14 +11,11 @@ Plug 'vim-ruby/vim-ruby'
 Plug 'hashivim/vim-terraform'
 Plug 'cespare/vim-toml'
 Plug 'ntpeters/vim-better-whitespace'
-Plug 'LnL7/vim-nix'
-"Plug 'direnv/direnv.vim'
 Plug 'pearofducks/ansible-vim'
 Plug 'itchyny/vim-gitbranch'
 Plug 'rust-lang/rust.vim'
 Plug 'airblade/vim-gitgutter'
 Plug 'elixir-editors/vim-elixir'
-Plug 'leafgarland/typescript-vim'
 Plug 'jlanzarotta/bufexplorer'
 Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
 Plug 'junegunn/fzf.vim'