Redundant code

[ArthurZC23]

When throwing an error in the getJwks method because the status code isn't right, we have the following argument for the JwksError: res.body && (res.body.message || res.body) || res.statusMessage || Http Error ${res.statusCode}``.

By set logic res.body && (res.body.message || res.body) will always be res.body. Therefore, either (res.body.message || res.body) is not necessary or we should change one of the logic operators.

[afhole]

I don't believe this is redundant, e.g.:

res = { body: {} }
res.body && (res.body.message || res.body)
//{}
res = { body: { message: 'hello' } }
res.body && (res.body.message || res.body)
//"hello"