Clean up nvim LSP config.

Leave in only the server we're currently using.

nvim/.config/nvim/init.vim

@@ -114,7 +114,7 @@ end
 -- Use a loop to conveniently both setup defined servers
 -- and map buffer local keybindings when the language server attaches
 -- rust_analyzer
-local servers = { "pyright", "tsserver", "clangd" }
+local servers = { "clangd" }
 for _, lsp in ipairs(servers) do
   nvim_lsp[lsp].setup { on_attach = on_attach }
 end