Remove torrequest dependency

[ppfeister]

Description

Dependency torrequest is 6 years unmaintained and will be deprecated in a future version of Sherlock.

Code of Conduct

• I agree to follow this project's Code of Conduct

[sdushantha]

I believe this can be closed, can you confirm @ppfeister?

[ppfeister]

Since torrequest wasn't actually removed, only made optional for #2130, this should remain open and on the backlog for 0.16.0