Removing Adio

I understand the need to remove audio from my submissions, but how do I do that without disturbing the original data including format file type or meta data.

I hope you're doing the bulk of my videography with a smartphone and would like to remove the audio through my device so I can upload each night on my travels.
Thanks in advance to anyone may be able to point me in the right direction here.

Check these videos out.
https://www.youtube.com/watch?v=VEZ5Og8x5PQ
https://www.youtube.com/watch?v=f-7Jp5cGBTM