- drop `generated` subdir, move these files to build root.
To move them next to CPack and other config files, and to avoid
a subdirectory for only 2 files.
Follow-up to 69328490fc#2849
- add 'Consumed variables' comment for `CMake/cmake_uninstall.in.cmake`.
- move generated `cmake_uninstall.cmake` to the build root directory
(from `CMake/`). To:
- avoid creating a `CMake` subdirectory within the build directory
with this single file in it.
- move it next to its `cmake_install.cmake` counterpart.
- move it next to `install_manifest.txt` which it relies on.
Follow-up to 27e2a4733c
- Use `PROJECT_SOURCE_DIR` for these files, replacing
`CMAKE_CURRENT_SOURCE_DIR`, to make it consistent with rest of CMake
sources, and to reduce ambiguity in `CMake/cmake_uninstall.in.cmake`
template.
Follow-up to 8198e388d3#22188
Follow-up to 4839029645#22187
Follow-up to 9126eb5a8a#15331Closes#22192
a7e8016fa2