[gnome-calendar/calendar-editor] source-dialog: remove useless checks before freeing memory

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit b28f16c63582b45c9743200915fccd6457d7d26d
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Wed May 6 09:26:39 2015 -0300

    source-dialog: remove useless checks before freeing memory
    
    g_free is NULL-proof, no need to check if it's NULL
    before using it.

 src/gcal-source-dialog.c |   22 +++++++---------------
 1 files changed, 7 insertions(+), 15 deletions(-)
---
diff --git a/src/gcal-source-dialog.c b/src/gcal-source-dialog.c
index df5ecdb..093c399 100644
--- a/src/gcal-source-dialog.c
+++ b/src/gcal-source-dialog.c
@@ -399,10 +399,8 @@ calendar_listbox_sort_func (GtkListBoxRow *row1,
       if (retval == 0)
         retval = g_strcmp0 (e_source_get_display_name (source1), e_source_get_display_name (source2));
 
-      if (parent_name1 != NULL)
-        g_free (parent_name1);
-      if (parent_name2 != NULL)
-        g_free (parent_name2);
+      g_free (parent_name1);
+      g_free (parent_name2);
     }
   else
     {
@@ -1370,21 +1368,16 @@ validate_url_cb (GcalSourceDialog *dialog)
                                          dialog);
             }
 
-          if (user)
-            g_free (user);
-          if (password)
-            g_free (password);
+          g_free (user);
+          g_free (password);
         }
 
       e_named_parameters_free (credentials);
     }
 
 out:
-  if (host)
-    g_free (host);
-
-  if (path)
-    g_free (path);
+  g_free (host);
+  g_free (path);
 
   return FALSE;
 }
@@ -1624,8 +1617,7 @@ discover_sources_cb (GObject      *source,
           gtk_widget_show_all (row);
         }
 
-      if (resource_path)
-        g_free (resource_path);
+      g_free (resource_path);
     }
 
   // Free things up