Revert "Travis now has an up to date pypy"
Revert "Travis now has an up to date pypy"

This reverts commit 5a4aa42542c952905fbf83582bff4bb2b328c4e1.

glyph/cryptography,skeuomorf/cryptography,kimvais/cryptography,kimvais/cryptography,Ayrx/cryptography,Lukasa/cryptography,dstufft/cryptography,dstufft/cryptography,bwhmather/cryptography,bwhmather/cryptography,dstufft/cryptography,kimvais/cryptography,Lukasa/cryptography,skeuomorf/cryptography,kimvais/cryptography,Hasimir/cryptography,Hasimir/cryptography,skeuomorf/cryptography,bwhmather/cryptography,Lukasa/cryptography,dstufft/cryptography,Hasimir/cryptography,sholsapp/cryptography,Ayrx/cryptography,dstufft/cryptography,sholsapp/cryptography,sholsapp/cryptography,glyph/cryptography,Ayrx/cryptography,bwhmather/cryptography,sholsapp/cryptography,skeuomorf/cryptography,Ayrx/cryptography,Hasimir/cryptography