amd64/vmm: Remove an unused function

Reviewed by:	corvink, emaste
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D53423

Author: markjdb

sys/amd64/vmm/io/ppt.c

@@ -335,13 +335,6 @@ ppt_teardown_msix(struct pptdev *ppt)
 	ppt->msix.num_msgs = 0;
 }
 
-int
-ppt_avail_devices(void)
-{
-
-	return (num_pptdevs);
-}
-
 int
 ppt_assigned_devices(struct vm *vm)
 {

sys/amd64/vmm/io/ppt.h

@@ -42,12 +42,6 @@ int	ppt_disable_msix(struct vm *vm, int bus, int slot, int func);
 int	ppt_assigned_devices(struct vm *vm);
 bool	ppt_is_mmio(struct vm *vm, vm_paddr_t gpa);
 
-/*
- * Returns the number of devices sequestered by the ppt driver for assignment
- * to virtual machines.
- */
-int	ppt_avail_devices(void);
-
 /*
  * The following functions should never be called directly.
  * Use 'vm_assign_pptdev()' and 'vm_unassign_pptdev()' instead.