spapr: Remove unhelpful tracepoints from spapr_irq_free_xics()

These traces contain some useless information (the always-0 source#) and
have no equivalents for XIVE mode.  For now just remove them, and we can
put back something more sensible if and when we need it.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

hw/ppc/spapr_irq.c

@@ -140,11 +140,7 @@ static void spapr_irq_free_xics(SpaprMachineState *spapr, int irq, int num)
     int i;
 
     if (ics_valid_irq(ics, irq)) {
-        trace_spapr_irq_free(0, irq, num);
         for (i = srcno; i < srcno + num; ++i) {
-            if (ics_irq_free(ics, i)) {
-                trace_spapr_irq_free_warn(0, i);
-            }
             memset(&ics->irqs[i], 0, sizeof(ICSIRQState));
         }
     }

hw/ppc/trace-events

@@ -13,10 +13,6 @@ spapr_pci_msi_retry(unsigned config_addr, unsigned req_num, unsigned max_irqs) "
 spapr_cas_failed(unsigned long n) "DT diff buffer is too small: %ld bytes"
 spapr_cas_continue(unsigned long n) "Copy changes to the guest: %ld bytes"
 
-# spapr_irq.c
-spapr_irq_free(int src, int irq, int num) "Source#%d, first irq %d, %d irqs"
-spapr_irq_free_warn(int src, int irq) "Source#%d, irq %d is already free"
-
 # spapr_hcall.c
 spapr_cas_pvr(uint32_t cur_pvr, bool explicit_match, uint32_t new_pvr) "current=0x%x, explicit_match=%u, new=0x%x"
 spapr_h_resize_hpt_prepare(uint64_t flags, uint64_t shift) "flags=0x%"PRIx64", shift=%"PRIu64