Autogen: Revert "Add timestamp file for CMAKE_GLOBAL_AUTORCC_TARGET"

In the commit 8d99e71b, a new timestamp file was added to prevent
unneeded `AUTORCC` triggering after successful builds when
`CMAKE_GLOBAL_AUTORCC_TARGET` is ON. This caused a regression that
configuration fails when multiple `.qrc` files are added to a target.
This commits reverts 8d99e71b.

Issue: #26059
Fixes: #26126