I18N: Remove admin notice when the `WPLANG` constant is no longer necessary.

Introduced in [29630], this admin notice informs administrators (or network administrators on multisite installs) that the `WPLANG` constant is no longer needed when the locale returned by `get_locale()` does not match. After 5 years, the notice is being removed to avoid causing confusion for non-technical users.

The `_deprecated_argument()` call will persist to inform developers of the issue within log files.

Props flixos90, iworks, ocean90.
Fixes #39675.
Built from https://develop.svn.wordpress.org/trunk@44946


git-svn-id: http://core.svn.wordpress.org/trunk@44777 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/options-general.php

@@ -183,14 +183,6 @@ if ( ! empty( $languages ) || ! empty( $translations ) ) {
 
 			// Add note about deprecated WPLANG constant.
 			if ( defined( 'WPLANG' ) && ( '' !== WPLANG ) && $locale !== WPLANG ) {
-				if ( is_multisite() && current_user_can( 'manage_network_options' )
-					|| ! is_multisite() && current_user_can( 'manage_options' ) ) {
-					?>
-					<p class="description">
-						<strong><?php _e( 'Note:' ); ?></strong> <?php printf( __( 'The %1$s constant in your %2$s file is no longer needed.' ), '<code>WPLANG</code>', '<code>wp-config.php</code>' ); ?>
-					</p>
-					<?php
-				}
 				_deprecated_argument( 'define()', '4.0.0', sprintf( __( 'The %1$s constant in your %2$s file is no longer needed.' ), 'WPLANG', 'wp-config.php' ) );
 			}
 			?>

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.2-alpha-44945';
+$wp_version = '5.2-alpha-44946';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.