revert group management (#2656)

* Revert "json post base path bug fixed (#2647)"

This reverts commit 04cf250a54.

* Revert "Group Management of Subscription Clients"

* Revert "fix getSubGroupClients for enable/disable and edit clients."

* Revert "Enhance database initialization in db.go (#2645)"

This reverts commit 66fe84181b.

* Revert "Add checkpoint handling in CloseDB function (#2646)"

This reverts commit 4dd40f6f19.

* Revert "Improved database model migration and added indexing (#2655)"

This reverts commit b922d986d6.

web/assets/js/util/utils.js

@@ -70,41 +70,6 @@ class HttpUtil {
         }
         return msg;
     }
-
-    static async jsonPost(url, data) {
-        let msg;
-        try {
-            const requestOptions = {
-                method: 'POST',
-                headers: {
-                    'Content-Type': 'application/json',
-                },
-                body: JSON.stringify(data),
-            };
-            const resp = await fetch(basePath + url.replace(/^\/+|\/+$/g, ''), requestOptions);
-            const response = await resp.json();
-
-            msg = this._respToMsg({data : response});
-        } catch (e) {
-            msg = new Msg(false, e.toString());
-        }
-        this._handleMsg(msg);
-        return msg;
-    }
-
-    static async postWithModalJson(url, data, modal) {
-        if (modal) {
-            modal.loading(true);
-        }
-        const msg = await this.jsonPost(url, data);
-        if (modal) {
-            modal.loading(false);
-            if (msg instanceof Msg && msg.success) {
-                modal.close();
-            }
-        }
-        return msg;
-    }
 }
 
 class PromiseUtil {