[fix] Remove OPDS menu entry from FilemanagerMenu (#7291)

Fixes #7290.

frontend/apps/filemanager/filemanagermenu.lua

@@ -327,18 +327,6 @@ function FileManagerMenu:setUpdateItemTable()
         sub_item_table = PluginLoader:genPluginManagerSubItem()
     }
 
-    self.menu_items.opds_catalog = {
-        text = _("OPDS catalog"),
-        callback = function()
-            local OPDSCatalog = require("apps/opdscatalog/opdscatalog")
-            local filemanagerRefresh = function() self.ui:onRefresh() end
-            function OPDSCatalog:onClose()
-                filemanagerRefresh()
-                UIManager:close(self)
-            end
-            OPDSCatalog:showCatalog()
-        end,
-    }
     self.menu_items.developer_options = {
         text = _("Developer options"),
         sub_item_table = {

frontend/ui/elements/filemanager_menu_order.lua

@@ -134,7 +134,7 @@ local order = {
         "find_file",
         "----------------------------",
         "goodreads",
-        "opds_catalog",
+        "opds",
     },
     main = {
         "history",