[epiphany] Avoid using g_return_val_if_fail in ephy_uri_safe_unescape

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 9a14372e6812ca0e48a9ca90cce3e3006a6d1efc
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Mon Sep 21 12:47:38 2015 -0500

    Avoid using g_return_val_if_fail in ephy_uri_safe_unescape
    
    https://bugzilla.gnome.org/show_bug.cgi?id=755365

 lib/ephy-uri-helpers.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/ephy-uri-helpers.c b/lib/ephy-uri-helpers.c
index d4d8335..956d944 100644
--- a/lib/ephy-uri-helpers.c
+++ b/lib/ephy-uri-helpers.c
@@ -256,7 +256,7 @@ ephy_uri_safe_unescape (const char *uri_string)
 
   /* This function is not null-safe since it is mostly used in scenarios where
    * passing or returning null would typically lead to a security issue. */
-  g_return_val_if_fail (uri_string, g_strdup (""));
+  g_assert (uri_string);
 
   /* Protect against escaped null characters and escaped slashes. */
   decoded_uri = g_uri_unescape_string (uri_string, "/");