Removed test binaries from main `CMakeLists.txt`
Removed test binaries from main `CMakeLists.txt`

Small cleanup of main `CMakeLists.txt`:

* Removed test binaries
* Removed code for test binaries

Now `CMakeLists.txt` is _only_ responsible for building the main
program.

Submanifold/psalm,Submanifold/psalm,Submanifold/psalm,Submanifold/psalm