Remove regtests that rely on rascaline #39

Job	Run time
codecheck / codecheck	38m 42s
docker / docker (fedora39)	21m 15s
conda / conda (ubuntu-20.04)	10m 29s
docker / docker (rocky8)	24m 16s
linux / linux (-doc-mpi-)	16m 2s
conda / conda (macos-12)	19m 49s
mac / macports (macos-12)	14m 30s
linux / linux (-mpi-)	15m 51s
conda / conda (macos-14)	8m 17s
mac / macports (macos-14)	8m 31s
linux / linux (-coverage-mpi-)	14m 4s
mac / macsimple (macos-12)	8m 28s
mac / macports (+allmodules, macos-12)	25m 36s
linux / linux (-debug-)	17m 20s
mac / macsimple (macos-14)	4m 24s
linux / linux (-debug-mpi-)	18m 5s
linux / linux (-intel-)	18m 26s
linux / linux (-pycv-mpi-)	14m 22s
	4h 58m 27s

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