Drop field-level deprecation headers from #2224; track field removal in API v4 discussion#2350

Flix6x wants to merge 2 commits into

feat/api/use-202-status-consistenly-in-triggering-and-fetching-endpointsFlexMeasures/flexmeasures:feat/api/use-202-status-consistenly-in-triggering-and-fetching-endpointsfrom

followup/2224-conventional-deprecationFlexMeasures/flexmeasures:followup/2224-conventional-deprecationCopy head branch name to clipboard