chore: remove unused features from config crate (#7531)
### Description
Noticed that `config` was pulling in a lot of deps that weren't used for
file formats that we don't support.
Future work might be to not use the `config` library since we aren't
using the primary feature of the library which is having multiple
sources for the config, but we just read from a single file.
### Testing Instructions
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Closes TURBO-2451
