correct sign-define deprecation warning

nvim/lua/plugins/lsp.lua

@@ -50,21 +50,8 @@ return {
         -- Diagnostics
         ---
 
-        local sign = function(opts)
-          vim.fn.sign_define(opts.name, {
-            texthl = opts.name,
-            text = opts.text,
-            numhl = ''
-          })
-        end
-
-        sign({ name = 'DiagnosticSignError', text = '✘' })
-        sign({ name = 'DiagnosticSignWarn', text = '▲' })
-        sign({ name = 'DiagnosticSignHint', text = '⚑' })
-        sign({ name = 'DiagnosticSignInfo', text = '' })
-
         vim.diagnostic.config({
-          virtual_text = false,
+          virtual_text = true,
           severity_sort = true,
           float = {
             border = 'rounded',