perf ui browsers: Remove help messages about use of right and arrow keys

They were repurposed for horizontal scrolling, so use just ENTER/ESC in
the help messages.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes: c6c3c02dea40 ("perf hists browser: Implement horizontal scrolling")
Link: http://lkml.kernel.org/n/tip-n5ar4qg8fs12ax4vhr3rxhxj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 9b7346a..eea1627 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1496,7 +1496,7 @@
 		thread__zput(browser->hists->thread_filter);
 		ui_helpline__pop();
 	} else {
-		ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s(%d) thread\"",
+		ui_helpline__fpush("To zoom out press ESC or ENTER + \"Zoom out of %s(%d) thread\"",
 				   thread->comm_set ? thread__comm_str(thread) : "",
 				   thread->tid);
 		browser->hists->thread_filter = thread__get(thread);
@@ -1540,7 +1540,7 @@
 	} else {
 		if (map == NULL)
 			return 0;
-		ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s DSO\"",
+		ui_helpline__fpush("To zoom out press ESC or ENTER + \"Zoom out of %s DSO\"",
 				   __map__is_kernel(map) ? "the Kernel" : map->dso->short_name);
 		browser->hists->dso_filter = map->dso;
 		perf_hpp__set_elide(HISTC_DSO, true);
@@ -1761,8 +1761,8 @@
 	"For multiple event sessions:\n\n"				\
 	"TAB/UNTAB     Switch events\n\n"				\
 	"For symbolic views (--sort has sym):\n\n"			\
-	"->            Zoom into DSO/Threads & Annotate current symbol\n" \
-	"<-            Zoom out\n"					\
+	"ENTER         Zoom into DSO/Threads & Annotate current symbol\n" \
+	"ESC           Zoom out\n"					\
 	"a             Annotate current symbol\n"			\
 	"C             Collapse all callchains\n"			\
 	"d             Zoom into current DSO\n"				\