[epiphany/gnome-3-28] Revert "Again disallow new tab action in app mode"

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 006e94c85bb13665536da2e9806476c0d21dc119
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Fri Jun 1 10:27:14 2018 -0500

    Revert "Again disallow new tab action in app mode"
    
    This reverts commit c56294dd46db69c94f8238dd47f568ca57bc51c0.
    
    Seems this has had unintended consequences.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=796204

 src/ephy-notebook.c | 7 ++-----
 src/ephy-window.c   | 1 -
 2 files changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/src/ephy-notebook.c b/src/ephy-notebook.c
index 4a05b933b..38338627f 100644
--- a/src/ephy-notebook.c
+++ b/src/ephy-notebook.c
@@ -344,12 +344,10 @@ static void
 update_tabs_visibility (EphyNotebook *nb,
                         gboolean      before_inserting)
 {
-  EphyEmbedShellMode mode;
   gboolean show_tabs = FALSE;
   guint num;
   EphyPrefsUITabsBarVisibilityPolicy policy;
 
-  mode = ephy_embed_shell_get_mode (EPHY_EMBED_SHELL (ephy_shell_get_default ()));
   num = gtk_notebook_get_n_pages (GTK_NOTEBOOK (nb));
 
   if (before_inserting)
@@ -358,9 +356,8 @@ update_tabs_visibility (EphyNotebook *nb,
   policy = g_settings_get_enum (EPHY_SETTINGS_UI,
                                 EPHY_PREFS_UI_TABS_BAR_VISIBILITY_POLICY);
 
-  if (mode != EPHY_EMBED_SHELL_MODE_APPLICATION &&
-      ((policy == EPHY_PREFS_UI_TABS_BAR_VISIBILITY_POLICY_MORE_THAN_ONE && num > 1) ||
-        policy == EPHY_PREFS_UI_TABS_BAR_VISIBILITY_POLICY_ALWAYS))
+  if (((policy == EPHY_PREFS_UI_TABS_BAR_VISIBILITY_POLICY_MORE_THAN_ONE && num > 1) ||
+       policy == EPHY_PREFS_UI_TABS_BAR_VISIBILITY_POLICY_ALWAYS))
     show_tabs = TRUE;
 
   /* Only show the tabs when the "tabs-allowed" property is TRUE. */
diff --git a/src/ephy-window.c b/src/ephy-window.c
index 2bdf442d5..e7aa10f56 100644
--- a/src/ephy-window.c
+++ b/src/ephy-window.c
@@ -2997,7 +2997,6 @@ static const char *disabled_actions_for_app_mode[] = { "open",
                                                        "save-as-application",
                                                        "encoding",
                                                        "bookmark-page",
-                                                       "new-tab",
                                                        "home" };
 
 static void