Go find a safe place to reach 60 mph /100kph and then come to a stop hard and fast without engaging and then roll with your foot off the brake for a while and do it again and by the thrid time your rotors will be clear of brake pad gunk (this is what i have been told and complied cor the fox plz look through the forum some people have some different answers)
The build up happens when you brake hard i.e. offramp and then you get to sit at a red light and the now hot brake material glues itself to the rotor and any small deviation on the rotor will be noticable.
To help prevent this build up try being more aware of brake pressures and if it is unavoidable you could place the car in netrual after a complete stop and engage the e brake. Disengage the foot brake. And allow the pads to cool without pressures
Ultimately, if rebedding (as described by @DoctorStiches) does not solve the problem, you will need to either have your OE rotors resurfaced, or replace them: in either case, get new pads, and aftermarket is the fix (no risk of this occurring again with OE pads). Both of those that you show have been used to correct the "shakeys".