Remove vault_unseal script

We don't need the original vault_unseal script since pivault_unseal
basically takes its place.

scripts/vault_unseal.py

@@ -1,32 +0,0 @@
-#!/usr/bin/python3
-
-import json
-import os
-import subprocess
-import threading
-
-vaults = ["vault-0"]
-
-home = os.getenv("HOME")
-with open(os.path.join(home, ".vault-keys/pivault-cluster-keys.json")) as f:
-    vault_secrets = json.load(f)
-
-procs = []
-
-for vault in vaults:
-    procs += [
-        threading.Thread(
-            target = subprocess.run,
-            args = (
-                ["kubectl", "--context", "pikube.dnet-admin-pivault",
-                 "exec", "-ti", vault, "--",
-                 "vault", "operator", "unseal",
-                 vault_secrets.get("unseal_keys_b64")[key]],))
-        for  key in range(int(vault_secrets.get("unseal_threshold")))
-    ]
-
-for thread in procs:
-    thread.start()
-
-for thread in procs:
-    thread.join()