perf tools: Remove unused struct definitions

struct event_list and struct events are never used.

Just get rid of them.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1363173585-9754-3-git-send-email-namhyung@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/trace-event-info.c

@@ -55,18 +55,6 @@ unsigned int page_size;
 static const char *output_file = "trace.info";
 static int output_fd;
 
-struct event_list {
-	struct event_list *next;
-	const char *event;
-};
-
-struct events {
-	struct events *sibling;
-	struct events *children;
-	struct events *next;
-	char *name;
-};
-
 
 static void *malloc_or_die(unsigned int size)
 {