A device driver with this name could optionally be installed for “extended x86 sensor support” when you have been using old versions of Hardware Monitor on Intel-based Macs running an operating system between Mac OS X 10.4.6 and OS X 10.9.5.
When you upgraded such a system to OS X 10.10 or later, the driver was automatically deactivated. Although it has no negative effect on your system, you might like to remove the outdated driver files. This has always been possible with the menu item Monitor > Remove driver for extended x86 sensor support.
As of version 5.0, this menu item is no longer present. However, you can still remove the driver as follows: