This reverts commit 4682e8d1.

Images building from the generated profile will have mkimage-profiles
commit information.

The definition of the TOPDIR variable has been fixed in a future mkimage.
Will $(TOPDIR)=$(BUILDDIR).

This layer was supposed to contain the propagator version.

Files added to git should not be in .gitignore.
See also: https://lists.altlinux.org/pipermail/devel-distro/2022-February/002831.html