videoio(test): re-enable FFmpeg tests on WIN32

- PR26800

modules/videoio/test/test_orientation.cpp

@@ -8,10 +8,6 @@ using namespace std;
 
 namespace opencv_test { namespace {
 
-// PR: https://github.com/opencv/opencv/pull/26800
-// TODO: Enable the tests back on Windows after FFmpeg plugin rebuild
-#ifndef _WIN32
-
 struct VideoCaptureAPITests: TestWithParam<cv::VideoCaptureAPIs>
 {
     void SetUp()
@@ -89,6 +85,4 @@ inline static std::string VideoCaptureAPITests_name_printer(const testing::TestP
 
 INSTANTIATE_TEST_CASE_P(videoio, VideoCaptureAPITests, testing::ValuesIn(supported_backends), VideoCaptureAPITests_name_printer);
 
-#endif // WIN32
-
 }} // namespace