deprecate: on-disk encryption

Why?
1. there're still a lot issues on it and there's no resource to
maintain and develop it considering we need to support it on all the
platforms.
2. it creates more bugs with Logseq Sync.

src/main/frontend/handler/common.cljs

@@ -8,8 +8,7 @@
             [frontend.util :as util]
             [frontend.util.property :as property]
             [goog.object :as gobj]
-            ["ignore" :as Ignore]
-            [lambdaisland.glogi :as log]))
+            ["ignore" :as Ignore]))
 
 (defn copy-to-clipboard-without-id-property!
   [format raw-text html]
@@ -59,14 +58,6 @@
         (println error-message-or-handler))
       {})))
 
-(defn read-metadata!
-  [content]
-  (try
-    (reader/read-string content)
-    (catch :default e
-      (log/error :parse/metadata-failed e)
-      {})))
-
 (defn get-page-default-properties
   [page-name]
   {:title page-name