Bug 528899 - testDirectorLogging fails on all platforms

Rename methods and variables to state executable and not delta or
deltaPack as support for these is long gone.
Also removed wrong comments stating that delta pack has to be installed
for some tests to be run.

Change-Id: I07af683b1a902d0606254c4accfcd35902e1a6f9
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
5 files changed