There may be a better way of doing this out there but this is how I do it:
1- Go to your Keyframes
2- Select the first keyframe you want to delete and left clic.
3- With the shift key down, go to the last keyframe and left clic. You can also selectively choose the keyframes you don't need by using the Ctrl key.
All selected keyframes will have a white dot in the middle.
4- Right clic on one of the selected keyframes and Presto ! No more keyframes !
This was made while keeping in mind that not everyone is at the same level of proficiency in VPro.
PC Win 10 Pro 64-bit 16gb Intel® Core™i7-2600k Quad Core 3.40GHz NVIDIA GEFORCE GTX 550 Ti
Cameras: Canon XF305 + Canon XH-A1
Blackmagic HyperDeck Studio Mini