Back to pull request #4

removed unneeded schizo , mpich and slurm directories #8

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Job	Run time
distcheck	3m 54s
macos (non-vpath, no-sphinx)	3m 31s
ubuntu (non-vpath, no-sphinx)	2m 54s
macos (non-vpath, sphinx)	2m 50s
macos (vpath, no-sphinx)	2m 56s
ubuntu (non-vpath, sphinx)	3m 9s
ubuntu (vpath, no-sphinx)	3m 21s
macos (vpath, sphinx)	2m 41s
ubuntu (vpath, sphinx)	2m 56s
	28m 12s