Hide 'powered by RustDesk' link on login page

loadPowered() in flutter/lib/common.dart now always returns SizedBox.shrink()
for the SoonDesk fork. The link is misleading for a non-official build
and clutters the login page.

Upstream behavior (controlled by the 'hide-powered-by-me' builtin option)
is preserved in commented-out form for reference.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

flutter/lib/common.dart

@@ -3690,27 +3690,32 @@ Color? disabledTextColor(BuildContext context, bool enabled) {
 }
 
 Widget loadPowered(BuildContext context) {
-  if (bind.mainGetBuildinOption(key: "hide-powered-by-me") == 'Y') {
-    return SizedBox.shrink();
-  }
-  return MouseRegion(
-    cursor: SystemMouseCursors.click,
-    child: GestureDetector(
-      onTap: () {
-        launchUrl(Uri.parse('https://rustdesk.com'));
-      },
-      child: Opacity(
-          opacity: 0.5,
-          child: Text(
-            translate("powered_by_me"),
-            overflow: TextOverflow.clip,
-            style: Theme.of(context)
-                .textTheme
-                .bodySmall
-                ?.copyWith(fontSize: 9, decoration: TextDecoration.underline),
-          )),
-    ),
-  ).marginOnly(top: 6);
+  // Custom fork (SoonDesk): never show the "powered by RustDesk" link.
+  // For non-official builds this is misleading (we're not "powered by"
+  // upstream RustDesk), and clutters the login page.
+  return SizedBox.shrink();
+  // (Upstream behavior kept below for reference.)
+  // if (bind.mainGetBuildinOption(key: "hide-powered-by-me") == 'Y') {
+  //   return SizedBox.shrink();
+  // }
+  // return MouseRegion(
+  //   cursor: SystemMouseCursors.click,
+  //   child: GestureDetector(
+  //     onTap: () {
+  //       launchUrl(Uri.parse('https://rustdesk.com'));
+  //     },
+  //     child: Opacity(
+  //         opacity: 0.5,
+  //         child: Text(
+  //           translate("powered_by_me"),
+  //           overflow: TextOverflow.clip,
+  //           style: Theme.of(context)
+  //               .textTheme
+  //               .bodySmall
+  //               ?.copyWith(fontSize: 9, decoration: TextDecoration.underline),
+  //         )),
+  //   ),
+  // ).marginOnly(top: 6);
 }
 
 // max 300 x 60