Remove ComponentAccumulator.mergeAll
Remove the mergeAll method of the ComponentAccumulator since recent updates make it obsolete. Remove all uses of mergeAll in new-style configuration fragments.
(includes the changes from !22024 (merged))
Remove the mergeAll method of the ComponentAccumulator since recent updates make it obsolete. Remove all uses of mergeAll in new-style configuration fragments.
(includes the changes from !22024 (merged))