[nautilus] rename-file-popover: Remove redundant calculation

[Carlos Soriano <csoriano src gnome org>]

commit 563c5f8d18994616c043309e3252c7d164bbad92
Author: Harish Nair <harishnair96 gmail com>
Date:   Mon May 21 19:53:23 2018 +0530

    rename-file-popover: Remove redundant calculation
    
    Removes a calculation that has already been done before.
    Instead uses the variable that contains the result of the calculation.

 src/nautilus-rename-file-popover-controller.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/nautilus-rename-file-popover-controller.c b/src/nautilus-rename-file-popover-controller.c
index a651200a0..8bbe05348 100644
--- a/src/nautilus-rename-file-popover-controller.c
+++ b/src/nautilus-rename-file-popover-controller.c
@@ -112,7 +112,7 @@ nautilus_rename_file_popover_controller_name_is_valid (NautilusFileNameWidgetCon
     name_length = strlen (name);
     max_name_length = nautilus_directory_get_max_child_name_length (directory);
 
-    if (strlen (name) == 0)
+    if (name_length == 0)
     {
         return FALSE;
     }