win_fix_multi_tab: refactor clipboard on windows, mid commit2

Signed-off-by: fufesou <shuanglongchen@yeah.net>

src/ui/cm.rs

@@ -2,11 +2,6 @@
 use crate::ipc::start_pa;
 use crate::ui_cm_interface::{start_ipc, ConnectionManager, InvokeUiCM};
 
-#[cfg(windows)]
-use clipboard::{
-    create_cliprdr_context, empty_clipboard, get_rx_clip_client, server_clip_file, set_conn_enabled,
-};
-
 use hbb_common::{allow_err, log};
 use sciter::{make_args, Element, Value, HELEMENT};
 use std::sync::Mutex;

src/ui/remote.rs

@@ -14,12 +14,6 @@ use sciter::{
     Value,
 };
 
-#[cfg(windows)]
-use clipboard::{
-    cliprdr::CliprdrClientContext, create_cliprdr_context as create_clipboard_file_context,
-    get_rx_clip_client, server_clip_file,
-};
-
 use hbb_common::{
     allow_err, fs::TransferJobMeta, log, message_proto::*, rendezvous_proto::ConnType,
 };