Revert "Merge pull request #12615 from nvaccess/appveyor-tagged" (#12638)
This reverts commit 9e09abf77429471eba53fa03132f81b56dede735, reversing
changes made to a47af19440fd2516e815b42d696324857ca9b477.
Summary of the issue:
Splitting the AppVeyor projects resulted in the build number being reset, and being tracked independently across projects.