remove is_rdp_service_open judgement for option share rdp (#7257)

Signed-off-by: 21pages <pages21@163.com>

src/flutter_ffi.rs

@@ -1679,10 +1679,6 @@ pub fn main_is_share_rdp() -> SyncReturn<bool> {
     SyncReturn(is_share_rdp())
 }
 
-pub fn main_is_rdp_service_open() -> SyncReturn<bool> {
-    SyncReturn(is_rdp_service_open())
-}
-
 pub fn main_set_share_rdp(enable: bool) {
     set_share_rdp(enable)
 }