Revert "Unhexlify the email address when embedding it in a certificate."
Revert "Unhexlify the email address when embedding it in a certificate."

This reverts commit 2d2ce24c94dc092dd6f3f2964ffa0ce3c16c536e.

Conflicts:
	routes/sign.js

TDA/fxa-auth-server,mozilla/fxa-auth-server,jamonation/fxa-auth-server,chilts/fxa-auth-server,jamonation/fxa-auth-server,chilts/fxa-auth-server,jrgm/fxa-auth-server,dannycoates/picl-idp,shane-tomlinson/fxa-auth-server,mozilla/fxa-auth-server,eoger/fxa-auth-server,shane-tomlinson/fxa-auth-server,jrgm/fxa-auth-server,TDA/fxa-auth-server,eoger/fxa-auth-server,mozilla/fxa-auth-server,eoger/fxa-auth-server,shane-tomlinson/fxa-auth-server,jamonation/fxa-auth-server,TDA/fxa-auth-server,jamonation/fxa-auth-server,jrgm/fxa-auth-server,chilts/fxa-auth-server,dannycoates/picl-idp,chilts/fxa-auth-server,TDA/fxa-auth-server,dannycoates/picl-idp,shane-tomlinson/fxa-auth-server,dannycoates/picl-idp,mozilla/fxa-auth-server,jrgm/fxa-auth-server,eoger/fxa-auth-server