[UI] Remove manual authentication for login user (#2635)

* Remove manual authentication
* update python libraries
* remove psycopg2 and bring back wal-e
* remove unused vars

ui/operator_ui/templates/index.html

@@ -3,7 +3,13 @@
   <head>
     <meta charset="utf-8">
     <title>PostgreSQL Operator UI</title>
-
+    <script>
+      const hash = localStorage.getItem("original-location-hash");
+      if (null !== hash) {
+        localStorage.removeItem("original-location-hash");
+        location.replace("/" + hash)
+      }
+    </script>
 
     <!-- fonts -->
 

ui/operator_ui/templates/login-deeplink.html

@@ -1,13 +0,0 @@
-<html>
-    <head>
-        <title>Storing client location ...</title>
-    </head>
-    <body>
-        <script language="javascript">
-            if (document.location.hash != null && document.location.hash != "") {
-                localStorage.setItem("login-url-hash", document.location.hash)
-            }
-            window.location.href = document.location.pathname + "?redirect=1"
-        </script>
-    </body>
-</html>

ui/operator_ui/templates/login-resolve-deeplink.html

@@ -1,18 +0,0 @@
-<html>
-    <head>
-        <title>Restoring client location ...</title>
-    </head>
-    <body>
-        <script language="javascript">
-            // /login/authorized
-            hash = localStorage.getItem("login-url-hash")
-            if (null != hash) {
-                localStorage.removeItem("login-url-hash")
-                location.href = "/" + hash
-            }
-            else {
-                location.href = "/"
-            }
-        </script>
-    </body>
-</html>