* Remove unnecessary `getEnvironmentType` parameter
The default value of the first parameter is `window.location.href`, so
there is no need to pass it in explicitly.
* Remove junk parameter from `getEnvironmentType` invocation
`getEnvironmentType` doesn't need to be passed any parameter, as the
default value is `window.location.href` which is generally what is
wanted. In this case, the variable `location.href` was always
`undefined` anyway. This particular `location` variable is from React
Router, and does not have an `href` property.
* Fix comment for `getEnvironmentType`
One of the possible return values was referred to by the wrong name.
