qahw_api: test: fix KW error in multi-record-test

Fix KW suspicious dereference of pointer reported by KW in
multi-record test.
The pointer being dereferenced cannot be null at this point
since failure case is fatal and exits the test before reaching
this code, so just removing the null check with is creating suspicion.

Change-Id: Icee262f7a11cfbc462cae4fb53134451f22787a9