Bug#831669: forwarded upstream

[Ghislain Vaillant]

control: forwarded -1 https://github.com/pyFFTW/pyFFTW/issues/128

Upstream confirmed the non-portability of the package due to both heavy
reliance on x86 alignment, and availability of the long-double precision
of the FFTW library. The latter is not supported by all architectures.

Solving this issue is not high on upstream's priority, so the question 
remains whether we should just cut the archive from the failing 
architectures and only keep the i386 and amd64, or just drop the
package altogether.

Best regards,
Ghis