package/clapack: remove package

package/clapack: remove package

clapack has been unmaintained for a couple of years. It is
semi-automatically generated from lapack sources using the f2c
fortran-to-C converter, which itself is pretty much unmaintained.

Remove the package. Remove the dependency on !CLAPACK from lapack.
Automatically select lapack from legacy if possible.

Cc: Alexandre PAYEN <alexandre.payen@smile.fr>
Cc: Benjamin Kamath <kamath.ben@gmail.com>
Cc: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Cc: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>