Drivers: hv: Remove fcopy driver

As the new fcopy driver using uio is introduced, remove obsolete driver
and application.

Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
Link: https://lore.kernel.org/r/1711788723-8593-7-git-send-email-ssengar@linux.microsoft.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>