Remove internal change from changelog

All past releases already have a wheel. The only thing
that changed is that it's now added automatically.

Author: jpcoenen

CHANGELOG.md

@@ -19,7 +19,6 @@
 ## Features
 
 - The TOTP code of a OTP field can now be accessed using the `.totp` property of a field. {#33}
-- Release of the SDK also includes `wheel` format. {#45}
 
 ## Fixes