virtual/rust: drop 1.64.0-r1

Bug: https://bugs.gentoo.org/884513
Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org>

virtual/rust/rust-1.64.0-r1.ebuild

@@ -1,22 +0,0 @@
-# Copyright 1999-2022 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-inherit multilib-build
-
-DESCRIPTION="Virtual for Rust language compiler"
-
-LICENSE=""
-# adjust when rust upstream bumps internal llvm
-# we do not allow multiple llvm versions in dev-lang/rust for
-# neither system nor bundled, so we just hardcode it here.
-SLOT="0/llvm-14"
-KEYWORDS="amd64 arm arm64 ~mips ppc ppc64 ~s390 sparc x86"
-IUSE="rustfmt"
-
-BDEPEND=""
-RDEPEND="|| (
-	~dev-lang/rust-${PV}[rustfmt?,${MULTILIB_USEDEP}]
-	~dev-lang/rust-bin-${PV}[rustfmt?,${MULTILIB_USEDEP}]
-)"