Help: Remove recommendations for using CMAKE_CFG_INTDIR
In !6163 (merged), commit e71c4f77 (CMAKE_CFG_INTDIR: Formally deprecate in favor of $<CONFIG>, 2021-05-27) only updated the docs for CMAKE_CFG_INTDIR itself, but other parts of the docs still used it. Update the other places to avoid referring to the now-deprecated variable.
Edited by Craig Scott