Revert "Updating validation interval to 15 secs as per the recent data"
Revert "Updating validation interval to 15 secs as per the recent data"

This reverts commit 3cbab0f4e10982e031898b49b7034807aa36c785.

Microsoft/tfs-cli,Microsoft/tfs-cli,grawcho/tfs-cli,grawcho/tfs-cli,grawcho/tfs-cli