Fix existing user's goto tag/move tab workaround (oops)

Write an empty keybindings.conf for new users to prevent the workaround
for old defaults being written.

Also remove generated comment in keybindings.conf, this file doesn't
need an explanation as it is generated by Geany.

src/keybindings.c

@@ -656,22 +656,24 @@ static void load_kb(GeanyKeyGroup *group, GeanyKeyBinding *kb, gpointer user_dat
 static void load_user_kb(void)
 {
 	gchar *configfile = g_strconcat(app->configdir, G_DIR_SEPARATOR_S, "keybindings.conf", NULL);
-	gchar *geanyconf = g_strconcat(app->configdir, G_DIR_SEPARATOR_S, "geany.conf", NULL);
 	GKeyFile *config = g_key_file_new();
 
 	/* backwards compatibility with Geany 0.21 defaults */
-	if (!g_file_test(configfile, G_FILE_TEST_EXISTS) &&
-		g_file_test(geanyconf, G_FILE_TEST_EXISTS))
+	if (!g_file_test(configfile, G_FILE_TEST_EXISTS))
 	{
-		utils_write_file(configfile, "[Bindings]\n"
+		gchar *geanyconf = g_strconcat(app->configdir, G_DIR_SEPARATOR_S, "geany.conf", NULL);
+		const gchar data[] = "[Bindings]\n"
 			"popup_gototagdefinition=\n"
 			"edit_transposeline=<Control>t\n"
 			"edit_movelineup=\n"
 			"edit_movelinedown=\n"
 			"move_tableft=<Alt>Page_Up\n"
-			"move_tabright=<Alt>Page_Down\n");
+			"move_tabright=<Alt>Page_Down\n";
+
+		utils_write_file(configfile, g_file_test(geanyconf, G_FILE_TEST_EXISTS) ?
+			data : "");
+		g_free(geanyconf);
 	}
-	g_free(geanyconf);
 
 	/* now load user defined keys */
 	if (g_key_file_load_from_file(config, configfile, G_KEY_FILE_KEEP_COMMENTS, NULL))
@@ -766,14 +768,7 @@ void keybindings_write_to_file(void)
 	gchar *data;
 	GKeyFile *config = g_key_file_new();
 
- 	/* add comment if the file is newly created */
-	if (! g_key_file_load_from_file(config, configfile, G_KEY_FILE_KEEP_COMMENTS, NULL))
-	{
-		g_key_file_set_comment(config, NULL, NULL,
-			"Keybindings for Geany\nThe format looks like \"<Control>a\" or \"<Shift><Alt>F1\".\n"
-			"But you can also change the keys in Geany's preferences dialog.", NULL);
-	}
-
+	g_key_file_load_from_file(config, configfile, 0, NULL);
 	keybindings_foreach(set_keyfile_kb, config);
 
 	/* write the file */