chore: Remove unused warning

see #56.

Author: marcustyphoon

gw2-ui/api_typecheck.mjs

@@ -19,9 +19,6 @@ const CACHE = '../gw2apicache';
 const TYPEGUARD_OUTPUT_DIR = './src/gw2api/typeguards/out';
 
 async function run() {
-  console.warn(
-    'Remember to change src/gw2api/types/items/item.ts before running this!',
-  );
   console.log('Generating type guards');
   // Just compiling these with tsc is not enough
   let bundle = await rollup({