Remove vim-go

It's too heavy and it also seems to have some issues. Gophers that use Go can manually install it

Fixed https://github.com/amix/vimrc/issues/537

README.md

@@ -125,7 +125,6 @@ I recommend reading the docs of these plugins to understand them better. Each pl
 * [vim-bundle-mako](https://github.com/sophacles/vim-bundle-mako)
 * [vim-markdown](https://github.com/tpope/vim-markdown)
 * [nginx.vim](https://github.com/vim-scripts/nginx.vim): Highlights configuration files for nginx
-* [vim-go](https://github.com/fatih/vim-go)
 * [rust.vim](https://github.com/rust-lang/rust.vim)
 * [vim-ruby](https://github.com/vim-ruby/vim-ruby)
 * [typescript-vim](https://github.com/leafgarland/typescript-vim)

update_plugins.py

@@ -45,7 +45,6 @@ goyo.vim https://github.com/junegunn/goyo.vim
 vim-zenroom2 https://github.com/amix/vim-zenroom2
 vim-repeat https://github.com/tpope/vim-repeat
 vim-commentary https://github.com/tpope/vim-commentary
-vim-go https://github.com/fatih/vim-go
 vim-gitgutter https://github.com/airblade/vim-gitgutter
 gruvbox https://github.com/morhetz/gruvbox
 vim-flake8 https://github.com/nvie/vim-flake8