bash: drop unused package

bash was used by the sapphire addon that has been dropped

packages/addons/addon-depends/bash/package.mk

@@ -1,21 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-# Copyright (C) 2016-present Team LibreELEC (https://libreelec.tv)
-
-PKG_NAME="bash"
-PKG_VERSION="5.0.18"
-PKG_SHA256="83adb589317d3295e73e86f6816f6670d7f089344538f9f516ce25bfb5fd3a0b"
-PKG_LICENSE="GPL"
-PKG_SITE="http://www.gnu.org/software/bash/bash.html"
-PKG_URL="ftp://ftp.cwru.edu/pub/$PKG_NAME/$PKG_NAME-$PKG_VERSION.tar.gz"
-PKG_DEPENDS_TARGET="toolchain ncurses"
-PKG_LONGDESC="The GNU Bourne Again shell."
-
-PKG_CONFIGURE_OPTS_TARGET="--with-curses \
-                           --enable-readline \
-                           --without-bash-malloc \
-                           --with-installed-readline"
-
-pre_make_target() {
-  # precreate this generated header because it may be created too late
-  make pathnames.h
-}