Revert "Merge branch 'main' into feature/remote-debug"

This reverts commit 6d6333058c, reversing
changes made to 446aded1f7.

client/iface/bind/udp_mux_generic.go

@@ -0,0 +1,22 @@
+//go:build !ios
+
+package bind
+
+import (
+	nbnet "github.com/netbirdio/netbird/util/net"
+)
+
+func (m *UDPMuxDefault) notifyAddressRemoval(addr string) {
+	// Kernel mode: direct nbnet.PacketConn (SharedSocket wrapped with nbnet)
+	if conn, ok := m.params.UDPConn.(*nbnet.PacketConn); ok {
+		conn.RemoveAddress(addr)
+		return
+	}
+
+	// Userspace mode: UDPConn wrapper around nbnet.PacketConn
+	if wrapped, ok := m.params.UDPConn.(*UDPConn); ok {
+		if conn, ok := wrapped.GetPacketConn().(*nbnet.PacketConn); ok {
+			conn.RemoveAddress(addr)
+		}
+	}
+}