Threaded mpi should be disabled by default in SCOTCH for all toolchains

[Micket]

easybuild-easyblocks/easybuild/easyblocks/s/scotch.py

Lines 112 to 115 in 2ecd3c9

	# For backwards compatability of v2.8.0 this is necessary but could be removed on a major version upgrade
	mpi_family = self.toolchain.mpi_family()
	if self.cfg['threadedmpi'] is None and mpi_family not in [toolchain.INTELMPI, toolchain.QLOGICMPI]:
	cflags += " -DSCOTCH_PTHREAD"

Comment indicates that it should have been dropped a long time ago. Lets do it for EB 5.0

[boegel]

Is this specific to SCOTCH?

[Micket]

I forgot to say scotch, yes, specifically scotch.

[boegel]

@Micket This can be closed thanks to #3019?

[Micket]

I thought it would have been automatically since i used the "Fixes ..." syntax