discover(...) fails, also may be irrelevant/unnecessary

[elias-ba]

The function discover(httpMethod, resourceType) seems to be doing a job of parsing this url; https://dhis2.github.io/dhis2-api-specification/spec/metadata_openapi.json and giving informations about some httpMethod (I am not even sure why that matters). I have tested it and don't really see it's relevancy. It always returns this error message (in my case):

{
  request: undefined,
  error: "Cannot read property 'post' of undefined",
  response: undefined
}

In another hand, when I see the complexity of it's code, I am wondering if one wrote all this just for something that the user can read through documentation. In fact I am confused by this function. This PR is a deletion proposal of that function as it seems to add many lines of code for something that doesn't seem very interesting. Please @taylordowns2000 lmk what you think and let's take a decision. If you have the same point than me, then please merge this.