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