Removed weave code.
Removed weave code.

Removed all scipy.weave related code - including some small loops that
were not cythonized. Those loops are now straight Python. It appeared
that the use_weave flag was set to False so the weave code probably
wasn't being used, anyway.

landlab/landlab,RondaStrauch/landlab,Carralex/landlab,SiccarPoint/landlab,SiccarPoint/landlab,amandersillinois/landlab,RondaStrauch/landlab,Carralex/landlab,ManuSchmi88/landlab,ManuSchmi88/landlab,landlab/landlab,csherwood-usgs/landlab,amandersillinois/landlab,csherwood-usgs/landlab,decvalts/landlab,landlab/landlab,ManuSchmi88/landlab,decvalts/landlab,laijingtao/landlab,RondaStrauch/landlab,cmshobe/landlab,cmshobe/landlab,laijingtao/landlab,Carralex/landlab,cmshobe/landlab