Use master-vs-deps as ibc source branch as there is no VS branch to insert into (and therefore the binding redirects have the incorrect roslyn version)

This reverts commit 27ecd825.

* Rework build definitions to accept VS optprof drop

remove preview 1 publishing

This is causing a race where we try to submit multiple changes to the dotnet/versions repository one after the other. The changes need to be fast-forward, but if you submit changes very quickly, you could get the HEAD of the old build right after submitting, meaning that the commit would be based on the old content. The failure to commit a fast-forward merge is failing the build.

dotnet/arcade#4320 addresses the need to retry if a fast-forward fails.

Co-Authored-By: NJason Malinowski <jason@jason-m.com>

master-vs-deps is the backup for all branch publishing, so it
must always be in the list

* Update publish data for 16.2-preview3 snap

* Update PublishData.json

Co-Authored-By: NJason Malinowski <jason@jason-m.com>