Fully Remove Google Voice Search

I am running Lollipop on the LG G3 and due to a loose connection on the audio jack google voice search gets activated everytime a slight movement of ANY attached cable. Now, I would like to deactivate google voice search completely. My phone is rooted and i am willing to raze any part of the file system to stop this annoying hellfire. It is annoying because I can be on a free-hands call and google voice search asks me over the speakers "In order to do a google voice search please unlock your phone". Additionally, the same physical problem results on the default music player starting to play music. Is there a wat to deactivate the wire control for the music player ?