Removed commentstring Gleam specific setup as it has been merged to the upstream lib repo

lua/lazyvim/plugins/extras/lang/gleam.lua

@@ -14,13 +14,4 @@ return {
       require("lspconfig").gleam.setup({})
     end,
   },
-
-  {
-    "JoosepAlviste/nvim-ts-context-commentstring",
-    opts = {
-      languages = {
-        gleam = "// %s",
-      },
-    },
-  },
 }