[epiphany] Fix double shortcut definition

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 2b2d97f43a0fcf364b7813428378484ce6a6a193
Author: Sabri Ünal <libreajans gmail com>
Date:   Thu Jan 30 14:15:35 2020 +0300

    Fix double shortcut definition

 src/ephy-window.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/ephy-window.c b/src/ephy-window.c
index c001fe374..1253c3ec2 100644
--- a/src/ephy-window.c
+++ b/src/ephy-window.c
@@ -126,8 +126,8 @@ const struct {
   /* Tabs */
   { "tab.previous", { "<Primary>Page_Up", "<Primary>KP_9", "<shift><Primary>Tab", NULL } },
   { "tab.next", { "<Primary>Page_Down", "<Primary>KP_3", "<Primary>Tab", NULL } },
-  { "tab.move-left", { "<shift><Primary>Page_Up", "<shift><Primary>Page_Up", NULL } },
-  { "tab.move-right", { "<shift><Primary>Page_Down", "<shift><Primary>Page_Down", NULL } },
+  { "tab.move-left", { "<shift><Primary>Page_Up", NULL } },
+  { "tab.move-right", { "<shift><Primary>Page_Down", NULL } },
   { "tab.duplicate", { NULL } },
   { "tab.close", { "<Primary>W", NULL } },
   { "tab.pin", { NULL } }