Highview steps:

Open VLC Player

Click Media>Convert/Save

Click Add to add the video you want

Click Convert/Save

Under Profile select Video – H.264 + MP3 (MP4) (or whatever format you need)

Click the wrench/screwdriver next to that profile to edit the settings

Select the Audio Codec Tab

Uncheck the box next to Audio (This renders the video with no audio)

Click Save

Browse to a location to save the video

Click Start and your video should now have no sound