[epiphany] debug: Fix unused variable warning

[Michael Catanzaro <mcatanzaro src gnome org>]

commit daa7e159e612c7364adfdecee6f3c2e6a51ffa8b
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Sat Sep 9 16:13:41 2017 -0500

    debug: Fix unused variable warning

 lib/ephy-debug.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/lib/ephy-debug.c b/lib/ephy-debug.c
index 4d9ee08..2f9ba52 100644
--- a/lib/ephy-debug.c
+++ b/lib/ephy-debug.c
@@ -39,9 +39,8 @@
  * analyze modules. Refer to doc/debugging.txt for more information.
  */
 
-static const char *ephy_debug_break = NULL;
-
 #if DEVELOPER_MODE
+static const char *ephy_debug_break = NULL;
 static GHashTable *ephy_profilers_hash = NULL;
 static char **ephy_profile_modules;
 static gboolean ephy_profile_all_modules;