Coding Standards: Remove redundant ignore annotations.

This removes ignore annotations which are ignoring an error which would not be thrown for that code.

Includes tidying up the format of the ignore annotation:
* Customary one space between the `//` and the start of the comment.
* There should be no spaces in the comma-separated sniff list.

Follow-up to [45607], [47185], [49200], [53152].

Props jrf.
See #59161.

git-svn-id: https://develop.svn.wordpress.org/trunk@56738 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/canonical.php

@@ -957,7 +957,6 @@ function redirect_guess_404_permalink() {
 		// If any of post_type, year, monthnum, or day are set, use them to refine the query.
 		if ( get_query_var( 'post_type' ) ) {
 			if ( is_array( get_query_var( 'post_type' ) ) ) {
-				// phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
 				$where .= " AND post_type IN ('" . join( "', '", esc_sql( get_query_var( 'post_type' ) ) ) . "')";
 			} else {
 				$where .= $wpdb->prepare( ' AND post_type = %s', get_query_var( 'post_type' ) );