[BUGFIX] Add missing content for DELETE request (Revision 5)

Currently the content of the Request is not attached if the
HTTP request type is DELETE.

Releases: master, 2.2, 2.1
Change-Id: Iecc888f295ae1d509742bf8efef8195f30301752
Revision-Id: 1f2524e09368d60e24bfee2b4d7c3d48a4ecfee4