Remove documentation that implies postgres_resetdb.sh creates a new user
Remove documentation that implies postgres_resetdb.sh creates a new user

It only creates a new database, not a user.

gdbelvin/trillian,AlCutter/trillian,AlCutter/trillian,gdbelvin/trillian,Martin2112/trillian,google/trillian,gdbelvin/trillian,daviddrysdale/trillian,google/trillian,daviddrysdale/trillian,RJPercival/trillian,Martin2112/trillian,RJPercival/trillian,daviddrysdale/trillian,Martin2112/trillian