Drop methods which use void* arguments

[gagern]

Boost 1.60 will complain about methods that take a void* argument. And since there appears to be no reasonable way to directly pass a void* from Python (as opposed to some object following the buffer interface, from which a data pointer and length could be obtained), it's probably better to drop these functions until suitable wrappers have been developed to replace them.

The modifications were performed manually, without pyste, so the next pyste run will likely overwrite them unless the pyste files get modified as well.

This fixes #1.

[dlemstra]

We have applied the patches manually, thanks for the pull request!