perf tools: Remove sys/ioctl.h from util.h

Not needed in this header, added to the places that need 'struct
winsize' and the ioctl defines.

Link: http://lkml.kernel.org/n/tip-2pznlli3146y4242otlcm70m@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/evsel.c

@@ -16,6 +16,7 @@
 #include <linux/hw_breakpoint.h>
 #include <linux/perf_event.h>
 #include <linux/err.h>
+#include <sys/ioctl.h>
 #include <sys/resource.h>
 #include "asm/bug.h"
 #include "callchain.h"