Remove normalization function from tests

Author: dmsnell

tests/phpunit/tests/html-api/wpHtmlProcessorFragmentParsing.php

@@ -79,62 +79,4 @@ public static function data_invalid_fragment_contexts() {
 			'XMP'              => array( '<xmp>' ),
 		);
 	}
-
-	/**
-	 * Produces normalized HTML output given a processor as input, which has not
-	 * yet started to proceed through its document.
-	 *
-	 * This can be used with a full or a fragment parser.
-	 *
-	 * @param WP_HTML_Processor $processor HTML Processor in READY state at the beginning of its input.
-	 * @return string|null Normalized HTML from input processor.
-	 */
-	private static function normalize_html( WP_HTML_Processor $processor ): ?string {
-		$html = '';
-
-		while ( $processor->next_token() ) {
-			$token_name = $processor->get_token_name();
-			$token_type = $processor->get_token_type();
-			$is_closer  = $processor->is_tag_closer();
-
-			switch ( $token_type ) {
-				case '#text':
-					$html .= $processor->get_modifiable_text();
-					break;
-
-				case '#tag':
-					if ( $is_closer ) {
-						$html .= "</{$token_name}>";
-					} else {
-						$names = $processor->get_attribute_names_with_prefix( '' );
-						if ( ! isset( $names ) ) {
-							$html .= "<{$token_name}>";
-						} else {
-							$html .= "<{$token_name}";
-							foreach ( $names as $name ) {
-								$value = $processor->get_attribute( $name );
-								if ( true === $value ) {
-									$html .= " {$name}";
-								} else {
-									$value = strtr( $value, '"', '&quot;' );
-									$html .= " {$name}=\"{$value}\"";
-								}
-							}
-						}
-
-						$text = $processor->get_modifiable_text();
-						if ( '' !== $text ) {
-							$html .= "{$text}</{$token_name}>";
-						}
-					}
-					break;
-			}
-		}
-
-		if ( null !== $processor->get_last_error() ) {
-			return null;
-		}
-
-		return $html;
-	}
 }