remove system-files interface.

snap/snapcraft.yaml

@@ -18,14 +18,12 @@ apps:
       - network
       - network-bind
       - system-observe
-      - systemfiles
 
   taos:
     command: taoswrapper.sh
     plugs:
       - network
       - system-observe
-      - systemfiles
       - historyfile
 
   taosdemo:
@@ -41,18 +39,6 @@ plugs:
     write:
       - $HOME/.taos_history
 
-  systemfiles:
-    interface: system-files
-    read:
-      - /etc/taos
-      - /var/lib/taos
-      - /var/log/taos
-      - /tmp
-    write:
-      - /var/log/taos
-      - /var/lib/taos
-      - /tmp
-
 parts:
   script:
     plugin: dump
@@ -119,4 +105,4 @@ layout:
 
 hooks:
   install:
-    plugs: [systemfiles, historyfile]
+    plugs: [historyfile]