Remove regtests that rely on rascaline #37

Job	Run time
codecheck / codecheck	45m 18s
conda / conda (ubuntu-20.04)	11m 6s
docker / docker (fedora39)	21m 26s
conda / conda (macos-12)	4m 16s
linux / linux (-doc-mpi-)	38m 58s
docker / docker (rocky8)	23m 36s
linux / linux (-mpi-)	48m 52s
conda / conda (macos-14)	7m 47s
mac / macports (macos-12)	15m 6s
linux / linux (-coverage-mpi-)	1h 2m 26s
mac / macports (macos-14)	8m 19s
linux / linux (-debug-)	29m 7s
mac / macsimple (macos-12)	8m 21s
mac / macports (+allmodules, macos-12)	23m 13s
linux / linux (-debug-mpi-)	40m 31s
mac / macsimple (macos-14)	4m 28s
linux / linux (-intel-)	46m 32s
linux / linux (-pycv-mpi-)	17m 20s
	7h 36m 42s

Provide feedback