fix: uninstall command without using gcloud (#16)

* fix: gcloud unavailable during uninstall

* fix: actually remove installed version

* fix: improve wording in uninstall hints

bin/uninstall

@@ -4,6 +4,6 @@ set -euo pipefail
 
 # Google Cloud SDK uninstall instructions - https://cloud.google.com/sdk/docs/uninstall-cloud-sdk
 
-gcloud_config_path=$(gcloud info --format='value(config.paths.global_config_dir)')
+printf "ℹ️  Your gcloud project configuration(s) persist in you gcloud configuration directory. Usually ~/.config/gcloud\\n"
 
-printf "ℹ️  Your gcloud project configuration(s) persist in %s\\n" "${gcloud_config_path}"
+rm -rf "$ASDF_INSTALL_PATH"