Drop virPerfGetEventFd

This function is not used anywhere. Moreover, the code that would
use lives in virperf.c and therefore has access to the FD anyway.
Well, for instance virPerfReadEvent is doing just that.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

src/libvirt_private.syms

@@ -2083,7 +2083,6 @@ virPerfEventIsEnabled;
 virPerfEventTypeFromString;
 virPerfEventTypeToString;
 virPerfFree;
-virPerfGetEventFd;
 virPerfNew;
 virPerfReadEvent;
 

src/util/virperf.c

@@ -241,16 +241,6 @@ bool virPerfEventIsEnabled(virPerfPtr perf,
     return event->enabled;
 }
 
-int virPerfGetEventFd(virPerfPtr perf,
-                      virPerfEventType type)
-{
-    virPerfEventPtr event = virPerfGetEvent(perf, type);
-    if (event == NULL)
-        return false;
-
-    return event->fd;
-}
-
 int
 virPerfReadEvent(virPerfPtr perf,
                  virPerfEventType type,
@@ -299,15 +289,6 @@ virPerfEventIsEnabled(virPerfPtr perf ATTRIBUTE_UNUSED,
     return false;
 }
 
-int
-virPerfGetEventFd(virPerfPtr perf ATTRIBUTE_UNUSED,
-                  virPerfEventType type ATTRIBUTE_UNUSED)
-{
-    virReportSystemError(ENXIO, "%s",
-                         _("Perf not supported on this platform"));
-    return -1;
-}
-
 int
 virPerfReadEvent(virPerfPtr perf ATTRIBUTE_UNUSED,
                  virPerfEventType type ATTRIBUTE_UNUSED,

src/util/virperf.h

@@ -51,9 +51,6 @@ int virPerfEventDisable(virPerfPtr perf,
 bool virPerfEventIsEnabled(virPerfPtr perf,
                            virPerfEventType type);
 
-int virPerfGetEventFd(virPerfPtr perf,
-                      virPerfEventType type);
-
 int virPerfReadEvent(virPerfPtr perf,
                      virPerfEventType type,
                      uint64_t *value);