Remove unused assigments

Backports phpmyadmin/sql-parser@0b2054c

Author: aristath

wp-includes/sqlite/class-wp-sqlite-token.php

@@ -161,7 +161,7 @@ class WP_SQLite_Token {
 	 *
 	 * @var mixed|string|null
 	 */
-	public $keyword;
+	public $keyword = null;
 
 	/**
 	 * The type of this token.
@@ -195,11 +195,10 @@ class WP_SQLite_Token {
 	 * @param int    $flags The flags of the token.
 	 */
 	public function __construct( $token, $type = 0, $flags = 0 ) {
-		$this->token   = $token;
-		$this->type    = $type;
-		$this->flags   = $flags;
-		$this->keyword = null;
-		$this->value   = $this->extract();
+		$this->token = $token;
+		$this->type  = $type;
+		$this->flags = $flags;
+		$this->value = $this->extract();
 	}
 
 	/**