#299 introduces a regression that breaks rustls + tokio support

[ryanswrt]

Describe the bug Previously the with-tokio feature could be used with tokio-rustls-tls - allowing for easy static compilation with musl. After #299 was merged, with-tokio will always pull in native-tls; which forces an openssl dependency

To Reproduce Upgrade from 0.33.0 to 0.34.0-beta2 with only the with-tokio and tokio-rusttls-tls features enabled, and you will no longer be able to compile with musl

Expected behavior rusttls to be used

[durch]

@ryanswrt, good callout, we've remove reqwest, and there is some fallout, it will be cleaned up before the next beta

[lpotthast]

Ran into the same issue. This is still an issue with the latest beta3 release.