Does The Stored Procedure sp_removedbreplication Remove Rowguids In merge replication if I run sp_removedbreplication will that remove rowguids or not?

Will it take into account the preserve_rowguidcol values in the sysmergearticles table?
Try this:

UPDATE dbo.sysmergearticles SET preserve_rowguidcol = 1 WHERE type = 10 and name = 'MyTable'


It will preserve the rowguid column for the article.