Remove incorrect auto-generated wording

The generated documentation for several calls includes wording that the
call does not return a response body, when in fact the call does return
a response body. This change removes the incorrect wording; the
documentation will need to be updated separately to described the
actual response body.

Change-Id: I3d6ad79a4f4214e3e6f67a1a0c45359f3c36da62
Merge "Remove incorrect auto-generated wording"