perf top browser: Remove spurious helpline update

It will be immediately replaced in perf_top_browser__run.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-q7e2jzb44elqpkvdllk94x0i@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/ui/browsers/top.c

@@ -208,6 +208,5 @@ int perf_top__tui_browser(struct perf_top *top)
 		},
 	};
 
-	ui_helpline__push("Press <- or ESC to exit");
 	return perf_top_browser__run(&browser);
 }