owmods-cli: remove update script file

#!/usr/bin/env nix-shell

#!nix-shell -i bash -p curl gnused nix-prefetch nix-prefetch-github jq wget

#modified version of https://github.com/NixOS/nixpkgs/blob/nixos-23.05/pkgs/servers/readarr/update.sh

set -e

dirname="$(dirname "$0")"

updateCliHash()

{

    version=$1

    url="https://github.com/ow-mods/ow-mod-man/releases/cli_v$version"

    prefetchJson=$(nix-prefetch-github ow-mods ow-mod-man --rev cli_v$version)

    sha256="$(echo $prefetchJson | jq -r ".sha256")"

    sed -i "s|hash = \"[a-zA-Z0-9\/+-=]*\";|hash = \"sha256-$sha256\";|g" "$dirname/default.nix"

    #download and replace lock file

    wget https://raw.githubusercontent.com/ow-mods/ow-mod-man/cli_v$version/Cargo.lock -q -O $dirname/Cargo.lock

}

updateVersion()

{

    sed -i "s/version = \"[0-9.]*\";/version = \"$1\";/g" "$dirname/default.nix"

}

latestTag=$(curl https://api.github.com/repos/ow-mods/ow-mod-man/releases | jq -r ".[0].tag_name")

latestVersion=${latestTag#*v}

echo "latest version: ${latestVersion}"

echo "updating..."

updateVersion $latestVersion

#

updateCliHash $latestVersion

echo "updated cli"