[Transform] disable BWC for backport of #70139 (#70206)
[Transform] disable BWC for backport of #70139 (#70206)

disable BWC in order to merge #70203
robin13/elasticsearch,GlenRSmith/elasticsearch,GlenRSmith/elasticsearch,GlenRSmith/elasticsearch,GlenRSmith/elasticsearch,robin13/elasticsearch,robin13/elasticsearch,GlenRSmith/elasticsearch,robin13/elasticsearch,robin13/elasticsearch