Themes: Remove unused private method WP_Theme::_check_headers_property_has_correct_type().

Follow-up to [56835].

Props marian1, mukesh27.
Fixes #64584.


Built from https://develop.svn.wordpress.org/trunk@62065


git-svn-id: http://core.svn.wordpress.org/trunk@61347 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-theme.php

@@ -2163,16 +2163,4 @@ final class WP_Theme implements ArrayAccess {
 	private static function _name_sort_i18n( $a, $b ) {
 		return strnatcasecmp( $a->name_translated, $b->name_translated );
 	}
-
-	private static function _check_headers_property_has_correct_type( $headers ) {
-		if ( ! is_array( $headers ) ) {
-			return false;
-		}
-		foreach ( $headers as $key => $value ) {
-			if ( ! is_string( $key ) || ! is_string( $value ) ) {
-				return false;
-			}
-		}
-		return true;
-	}
 }

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '7.0-beta5-62064';
+$wp_version = '7.0-beta5-62065';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.