Remove the username and api_key parameters from API calls
Remove the username and api_key parameters from API calls

These aren't required by the API any longer, so we'll quit wasting
space in the URLs with them.

https://seedscientific.atlassian.net/browse/POLIO-655

unicef/polio,unicef/rhizome,unicef/polio,SeedScientific/polio,unicef/rhizome,unicef/polio,SeedScientific/polio,unicef/rhizome,unicef/rhizome,SeedScientific/polio,unicef/polio,SeedScientific/polio,SeedScientific/polio