Remove job compute-api-v2.0-wadl

This job is failing for months since the published file has moved.
The nova repository is not referencing the location anymore, so
we can remove this.

Change-Id: I9ce3b2a8a662115ecb2cad4ba00d008ff54d6dd8
Related-Bug: #1313119
Merge "Remove job compute-api-v2.0-wadl"