Change dependencies for sw360 client library and http support once SW360 is released and remove them here

[neubs-bsi]

With the merge of the sw360 client library into the SW360 Main Repository: eclipse-sw360/sw360#1064

We are now waiting for eclipse-sw360/sw360#981 to be done to be able to change the dependencies of the

• sw360 client library
• http support library
  in the project and remove the code from this repo

[sschuberth]

FYI, here's the respective change in ORT: oss-review-toolkit/ort#3588