pack: v0.30.4 — drop the broken JEI-hide client script

The hide_disabled_items.js client script I added in v0.30.3 used
`JEIEvents.hideItems(...)` -- a namespace that does NOT exist in
KubeJS 2101.7.2 on NeoForge 1.21.1. There is no kubejs-jei bridge
mod for 1.21.1 NeoForge published on Modrinth at this time.

Client launchers were showing:
  KubeJS client script errors
  hide_disabled_items.js#8
  ReferenceError: \"JEIEvents\" is not defined.

Removing the script entirely. The Shattered Dimensional Carver
still:
  - Cannot be produced (Capsid recipe override with barrier input)
  - Does nothing on use (server-side right-click cancel)

Tradeoff: the item will still appear as a recipe-less entry in JEI
search if players type its name. Cosmetic only; no gameplay path
to obtain or use it.

If a JEI-hide approach becomes available in a future KubeJS update
or via a new bridge mod, we can revisit.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

pack/pack.lock.json

@@ -1,13 +1,13 @@
 {
   "$schema": "Brass-and-Sigil pack.lock.json - generated, do not edit by hand unless you know what you are doing",
   "name": "Brass and Sigil",
-  "version": "0.30.3",
+  "version": "0.30.4",
   "minecraft": "1.21.1",
   "loader": {
     "type": "neoforge",
     "version": "21.1.228"
   },
-  "lockedAt": "2026-05-30T21:15:04Z",
+  "lockedAt": "2026-06-01T19:14:46Z",
   "mods": [
     {
       "source": "modrinth",