
This reverts commit ee4d51197f175d03a4edd2c9af2188f5df2d8aa2. Reason for revert: It later turned out that setenv does not override os.environ in wsgi applications and this option can't be used to customize the environment variable as intended. Let's revert the change to keep the interface as much simple as possible instead of keeping the useless option. Change-Id: Ic057a86a67d819e49ff2965bc3387fd63a8e76a4