Describe the bug

We have had a couple Windows users report excessive CPU use of Powershell when it is used to calculate the number of handles being used by RabbitMQ. This was introduced by #6614 as a fix to #6613.

• https://stackoverflow.com/questions/76575596/rabbitmq-continually-spawns-powershell-which-results-in-100-cpu-usage
• https://groups.google.com/g/rabbitmq-users/c/hYOCHG1aCss
• Hight CPU usage on handle count executed from powershell #8541

We know that handle.exe sometimes does not return valid information, and of course sometimes is not installed. On Windows, keeping track of used handles (file descriptors) is not as critical as on Linux. Perhaps the best solution is to remove the Powershell backup.

Reproduction steps

Run RabbitMQ on Windows without installing handle.exe.

Expected behavior

No high CPU usage no matter how we calculate handle usage.

Additional context

N/A