Simplifies the negotiation and transfer handling by switching to the TX EDC's EDR api. Makes exposing of a callback interface and the corresponding configuration redundant.
WHY
EDR engine with single polling on the EDR is faster than two asynchronous processes (negotiation + transfer) with callback.
Since the EDRs should be explicitely deleted (as they would restart transfers until the end of the agreement period), we currently refrain from using them as the main tool for KA.
WHAT
Simplifies the negotiation and transfer handling by switching to the TX EDC's EDR api. Makes exposing of a callback interface and the corresponding configuration redundant.
WHY
EDR engine with single polling on the EDR is faster than two asynchronous processes (negotiation + transfer) with callback.
FURTHER NOTES
Closes #96 <-- insert Issue number if one exists