AthConfigFlags: remove excessive debug messsages

Remove excessive debug messages when accessing flags.

added NewConfig full-unit-tests labels

This merge request affects 1 package:

• Control/AthenaConfiguration

This merge request affects 1 file:

• Control/AthenaConfiguration/python/AthConfigFlags.py

Adding @ssnyder as watcher

added 22.0 Core review-pending-level-1 labels

CI Result SUCCESS (hash b2251f71)

	Athena	DetCommon
externals
cmake
make
tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 59472]

Looks good, approving - L1

added review-approved label and removed review-pending-level-1 label

added review-approved-point1 label

added review-approved-tier0 label

mentioned in commit dfde741f

merged