dev-util/glslang: Drop old versions

Signed-off-by: Matt Turner <mattst88@gentoo.org>

dev-util/glslang/Manifest

@@ -1,2 +1 @@
-DIST glslang-1.4.304.0.tar.gz 3917406 BLAKE2B 6d5beec94c5daafe905dabd6a4031e1c010cc9b395c5d8a8b4fdafd265a076251519056236b8f98fff613f21a0af6d4a2562c4c3c8255731642a6b887f3c4d24 SHA512 dae98afbea27b518e6230ebae5207c67b4f1a695b8f65033159bcf0064ec6546c8db4f2d52bd028353c15e4d7d9409c1f7dffc589639bfd8ee07d98ea7c73b12
 DIST glslang-1.4.309.0.tar.gz 3956306 BLAKE2B cc3c703f789612ed74740662d6ede1546886d226fcf6d1523893c5d623ef2302611ff5b210e63110805a0be8d4bb5f7bb330eb6daeff8ffae1b8d450b1b9d648 SHA512 89ec2ce7fc4532370234f8bc0172ba89af94b96be29aab1fca089a9209c462033d88ce9c3ce45e9d117ed75fab900037c398fc0a7eda54e95c4f80fa9d2191c5

dev-util/glslang/glslang-1.4.304.0.ebuild

@@ -1,41 +0,0 @@
-# Copyright 1999-2025 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-PYTHON_COMPAT=( python3_{10..13} )
-inherit cmake-multilib python-any-r1
-
-if [[ ${PV} == *9999* ]]; then
-	EGIT_REPO_URI="https://github.com/KhronosGroup/${PN}.git"
-	inherit git-r3
-else
-	GIT_COMMIT="vulkan-sdk-${PV}"
-	SRC_URI="https://github.com/KhronosGroup/${PN}/archive/${GIT_COMMIT}.tar.gz -> ${P}.tar.gz"
-	KEYWORDS="amd64 arm arm64 ~loong ppc ppc64 ~riscv x86"
-	S="${WORKDIR}/${PN}-${GIT_COMMIT}"
-fi
-
-DESCRIPTION="Khronos reference front-end for GLSL and ESSL, and sample SPIR-V generator"
-HOMEPAGE="https://www.khronos.org/opengles/sdk/tools/Reference-Compiler/ https://github.com/KhronosGroup/glslang"
-
-LICENSE="BSD"
-SLOT="0/15.1"
-
-# Bug 698850
-RESTRICT="test"
-
-BDEPEND="${PYTHON_DEPS}
-	~dev-util/spirv-tools-${PV}[${MULTILIB_USEDEP}]
-"
-
-DEPEND="~dev-util/spirv-tools-${PV}[${MULTILIB_USEDEP}]"
-RDEPEND="${DEPEND}"
-
-multilib_src_configure() {
-	local mycmakeargs=(
-		-DENABLE_PCH=OFF
-		-DALLOW_EXTERNAL_SPIRV_TOOLS=ON
-	)
-	cmake_src_configure
-}