feat(tarball): always download release tarball

install-shared.bash

@@ -24,7 +24,6 @@ download_release_tarball() {
 
     __tar_path="/tmp/${__release_name}_$(basename ${__release_url}).tar.gz"
 
-    if [[ ! -f "${__tar_path}" ]]; then
     __asset_url=$(curl \
         --head \
         --retry 3 \
@@ -39,7 +38,6 @@ download_release_tarball() {
         (>&2 echo "failed to download release asset (tag URL: ${__release_tag_url}, asset URL: ${__asset_url})")
         return 1
     fi
-    fi
 
     eval $__resultvar="'$__tar_path'"
 }