[JENKINS-60351] - Make it possible to disable multiple deletion attempts by...

[JENKINS-60351] - Make it possible to disable multiple deletion attempts by setting hudson.Util.maxFileDeletionRetries to zero (#4382)

* [JENKINS-60351] It should be possible to disable a retry of the
PathRemover

This does not address the issues that the comments and code in
hudons.Util are inconsistent if they are for retries or total number of
attempts (they are currently total number of attempts)

* [JENKINS-60351] Make the code conform to the documentation

maxRetries should control the number of retries not the number of
attempts.

* rename field from DELETION_MAX to DELETION_RETRIES