chore(neovim): Remove vim-mint as it was added to polygot

my pr for adding it to polygot was accepted sheerun/vim-polyglot#653

Author: NICHTJ3

configs/neovim/config/neovim/init.vim

@@ -32,8 +32,6 @@ Plug 'honza/vim-snippets' " Generic snippets
 let g:polyglot_disabled = ['coffee-script']
 Plug 'sheerun/vim-polyglot' " Generic syntax
 Plug 'jackguo380/vim-lsp-cxx-highlight',{'for':['cpp','ccls','clangd']} " With coc-clangd to provide highlighting
-Plug 'IrenejMarc/vim-mint' " Mint-lang
-"NOTE: The above wont be needed when my pr is merged into polygot
 
 " Git
 Plug 'tpope/vim-fugitive'