Remove MCMatchObjP2MCRelator

Explained in Rec!3357 (merged)

Goes with Rec!3357 (merged)

mentioned in merge request Rec!3357 (merged)

changed the description

mentioned in merge request Rec!3345

marked this merge request as ready

added cleanup label

added WIP dependency label

requested review from @pkoppenb

approved this merge request

• [2023-03-24 14:46] Validation started with lhcb-master-mr#7427
• [2023-03-25 00:08] Validation started with lhcb-gaudi-head#3513
• [2023-03-26 00:22] Validation started with lhcb-gaudi-head#3514

added lhcb-gaudi-head label

mentioned in commit MooreOnline@c4ff7b20

mentioned in merge request MooreOnline!213 (merged)

merged

mentioned in commit fb4255bc

mentioned in commit MooreOnline@78b5d747

mentioned in merge request !969 (merged)