perf debug: Remove needless include directives from debug.h

All we need there is a forward declaration for 'union perf_event', so
remove it from there and add missing header directives in places using
things from this indirect include.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-7ftk0ztstqub1tirjj8o8xbl@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/ordered-events.c

@@ -8,6 +8,7 @@
 #include "session.h"
 #include "asm/bug.h"
 #include "debug.h"
+#include "ui/progress.h"
 
 #define pr_N(n, fmt, ...) \
 	eprintf(n, debug_ordered_events, fmt, ##__VA_ARGS__)