Revert "add user input to set time scale"
Revert "add user input to set time scale"

This reverts commit 95b36a98ac0f5cd0eb2bc962c9e07d47ebbfd53a.

octalmage/vtop,xifat/vtop,xifat/vtop,octalmage/vtop,MrRio/vtop,tomas/rtop,MrRio/vtop,tomas/rtop