I18N: Remove unused `$wpdb` global from `get_locale()` after [39005].

Originally added in [38976], but reverted soon after.

Props johnjamesjacoby.
Fixes #38601.
Built from https://develop.svn.wordpress.org/trunk@39067


git-svn-id: http://core.svn.wordpress.org/trunk@39009 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/l10n.php

@@ -28,7 +28,7 @@
  * @return string The locale of the blog or from the {@see 'locale'} hook.
  */
 function get_locale() {
-	global $locale, $wp_local_package, $wpdb;
+	global $locale, $wp_local_package;
 
 	if ( isset( $locale ) ) {
 		/**

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-beta1-39066';
+$wp_version = '4.7-beta1-39067';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.