Fix removenonyt performance by using simpler fixed-string patterns instead of a PCRE

youtube-extract

@@ -23,7 +23,7 @@ domainPattern = re.compile(r'/(www\.|m\.)?(youtube\.(com|de|fr|co\.uk|it|es|at|p
 
 if mode == 'removenonyt':
 	# Anything in here could never be as fast as grep, so just delegate to that...
-	os.execlp('grep', 'grep', '-P', domainPattern.pattern + '|' + domainPattern.pattern.replace('/', '%2F') + '|/youtu\.be/|%2Fyoutu\.be%2F')
+	os.execlp('grep', 'grep', '-Fai', '-e', 'youtube', '-e', 'youtu.be', '-e', 'ytimg.com', '-e', '?v=', '-e', '%3Fv%3D', '-e', '&v=', '-e', '%26v%3D')
 	sys.exit(0)
 assert mode == 'massage'