Issue 10947: Send correct accept-header for AP

src/Protocol/ActivityPub/Receiver.php

@@ -68,17 +68,6 @@ class Receiver
 	const TARGET_ANSWER = 6;
 	const TARGET_GLOBAL = 7;
 
-	/**
-	 * Checks if the web request is done for the AP protocol
-	 *
-	 * @return bool is it AP?
-	 */
-	public static function isRequest()
-	{
-		return stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/activity+json') ||
-			stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/ld+json');
-	}
-
 	/**
 	 * Checks incoming message from the inbox
 	 *