LDAP signin form moved to main signin-modal

- previously was a separate modal
- now is located on main modal, like email auth

locales/en.json

@@ -100,6 +100,5 @@
 	"Select From Available Snippets": "Select From Available Snippets",
 	"OR": "OR",
 	"Export to Snippet": "Export to Snippet",
-	"Select Visibility Level": "Select Visibility Level",
-	"LDAP Sign in": "LDAP Sign in"
+	"Select Visibility Level": "Select Visibility Level"
 }