Coding Standards: Remove a one-time $sql variable in Edit Site form.

This allows the `$wpdb::prepare()` call to be picked up correctly by PHPCS.

Follow-up to [28712].

Props aristath, poena, afercia, SergeyBiryukov.
See #63168.

git-svn-id: https://develop.svn.wordpress.org/trunk@60101 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

src/wp-admin/network/site-settings.php

@@ -121,15 +121,16 @@
 	<table class="form-table" role="presentation">
 		<?php
 		$blog_prefix = $wpdb->get_blog_prefix( $id );
-		$sql         = "SELECT * FROM {$blog_prefix}options
-			WHERE option_name NOT LIKE %s
-			AND option_name NOT LIKE %s";
-		$query       = $wpdb->prepare(
-			$sql,
-			$wpdb->esc_like( '_' ) . '%',
-			'%' . $wpdb->esc_like( 'user_roles' )
+		$options     = $wpdb->get_results(
+			$wpdb->prepare(
+				'SELECT * FROM %i
+				WHERE option_name NOT LIKE %s
+				AND option_name NOT LIKE %s',
+				"{$blog_prefix}options",
+				$wpdb->esc_like( '_' ) . '%',
+				'%' . $wpdb->esc_like( 'user_roles' )
+			)
 		);
-		$options     = $wpdb->get_results( $query );
 
 		foreach ( $options as $option ) {
 			if ( 'default_role' === $option->option_name ) {