Outro matching only seems to support one method in the detector

[razzeee]

[mohit-0212]

This was because outros frames were already very less in the majority of the shows and the second method i.e. 'longest common subsequence' gave even lesser matches as compared to 'all matches'. So didn't make much sense to add the other method.

[razzeee]

Then we should investigate if we need to keep longest_common match. It might not be feasible to keep that method around.