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/overrides/kubejs/client_scripts/hide_disabled_items.js

@@ -1,11 +0,0 @@
-// Brass and Sigil -- client-side: hide items disabled server-side from JEI
-//
-// The Shattered Dimensional Carver is disabled on the server (the
-// Capsid recipe is overridden to require barriers, and the right-click
-// is cancelled). Hiding it from JEI completes the illusion -- players
-// don't see a recipe-less ghost item cluttering search.
-
-JEIEvents.hideItems(event => {
-    event.hide('alexsmobs:shattered_dimensional_carver');
-    console.info('[bns/hide_disabled_items] hid alexsmobs:shattered_dimensional_carver from JEI');
-});