Remove khmer.load_pe module
Remove khmer.load_pe module

Addresses #784

souravsingh/khmer,souravsingh/khmer,kdmurray91/khmer,F1000Research/khmer,ged-lab/khmer,ged-lab/khmer,Winterflower/khmer,F1000Research/khmer,F1000Research/khmer,jas14/khmer,kdmurray91/khmer,souravsingh/khmer,ged-lab/khmer,kdmurray91/khmer,jas14/khmer,Winterflower/khmer,Winterflower/khmer,jas14/khmer