Description of Linked Ticket

Currently, the --cpu displays the elapsed time between now and the last time the log for "cpu utilization" was written, which is almost a constant 4 because the thread sleeps for 4 seconds. This does not show cpu utilization and can be misleading, so either: fix the help message to reflect what it really shows, fix the code to actually show cpu utilization or remove it altogether.

Scope of Changes

Remove https://docs.mongodb.com/manual/reference/program/mongod/#std-option-mongod.--cpu