BUG: Fix suppress_warnings (again) for Python 3.6.
BUG: Fix suppress_warnings (again) for Python 3.6.

The Python 3.6 changes that resulted in the 6b49167c fix has been
fixed in Python 3.6.0rc1. So revert our fixes.

Eric89GXL/numpy,bertrand-l/numpy,simongibbons/numpy,WarrenWeckesser/numpy,pbrod/numpy,gfyoung/numpy,tynn/numpy,grlee77/numpy,ahaldane/numpy,grlee77/numpy,WarrenWeckesser/numpy,WarrenWeckesser/numpy,solarjoe/numpy,grlee77/numpy,endolith/numpy,madphysicist/numpy,Eric89GXL/numpy,simongibbons/numpy,abalkin/numpy,anntzer/numpy,endolith/numpy,jorisvandenbossche/numpy,ddasilva/numpy,madphysicist/numpy,pdebuyl/numpy,jorisvandenbossche/numpy,solarjoe/numpy,mattip/numpy,solarjoe/numpy,WarrenWeckesser/numpy,shoyer/numpy,jakirkham/numpy,MSeifert04/numpy,ahaldane/numpy,mhvk/numpy,pbrod/numpy,jakirkham/numpy,bringingheavendown/numpy,mattip/numpy,numpy/numpy,shoyer/numpy,b-carter/numpy,bertrand-l/numpy,rgommers/numpy,endolith/numpy,seberg/numpy,charris/numpy,ahaldane/numpy,pizzathief/numpy,mattip/numpy,behzadnouri/numpy,bringingheavendown/numpy,b-carter/numpy,MSeifert04/numpy,tynn/numpy,pdebuyl/numpy,shoyer/numpy,ssanderson/numpy,WarrenWeckesser/numpy,pbrod/numpy,MSeifert04/numpy,rgommers/numpy,ahaldane/numpy,Eric89GXL/numpy,pdebuyl/numpy,mhvk/numpy,anntzer/numpy,ContinuumIO/numpy,jakirkham/numpy,rgommers/numpy,jakirkham/numpy,gfyoung/numpy,grlee77/numpy,gfyoung/numpy,utke1/numpy,anntzer/numpy,jakirkham/numpy,utke1/numpy,endolith/numpy,numpy/numpy,chatcannon/numpy,charris/numpy,ddasilva/numpy,simongibbons/numpy,jorisvandenbossche/numpy,shoyer/numpy,mhvk/numpy,behzadnouri/numpy,pdebuyl/numpy,ssanderson/numpy,tynn/numpy,pizzathief/numpy,mhvk/numpy,shoyer/numpy,bertrand-l/numpy,pizzathief/numpy,ssanderson/numpy,abalkin/numpy,MSeifert04/numpy,simongibbons/numpy,numpy/numpy,pbrod/numpy,seberg/numpy,utke1/numpy,chatcannon/numpy,ahaldane/numpy,madphysicist/numpy,rgommers/numpy,jorisvandenbossche/numpy,bringingheavendown/numpy,pbrod/numpy,MSeifert04/numpy,ContinuumIO/numpy,pizzathief/numpy,simongibbons/numpy,behzadnouri/numpy,seberg/numpy,anntzer/numpy,chatcannon/numpy,charris/numpy,pizzathief/numpy,madphysicist/numpy,abalkin/numpy,b-carter/numpy,Eric89GXL/numpy,ddasilva/numpy,charris/numpy,seberg/numpy,mattip/numpy,ContinuumIO/numpy,grlee77/numpy,mhvk/numpy,numpy/numpy,jorisvandenbossche/numpy,madphysicist/numpy