use context.Background() for deleting tap intefaces

Signed-off-by: NikitaSkrynnik <nikita.skrynnik@xored.com>

pkg/networkservice/mechanisms/kernel/kerneltap/common.go

@@ -147,7 +147,7 @@ func del(ctx context.Context, conn *networkservice.Connection, vppConn api.Conne
 			return nil
 		}
 		now := time.Now()
-		_, err := tapv2.NewServiceClient(vppConn).TapDeleteV2(ctx, &tapv2.TapDeleteV2{
+		_, err := tapv2.NewServiceClient(vppConn).TapDeleteV2(context.Background(), &tapv2.TapDeleteV2{
 			SwIfIndex: swIfIndex,
 		})
 		if err != nil {