Remove -containsString: because it’s not available on macOS 10.9
Remove -containsString: because it’s not available on macOS 10.9

twobitlabs/XCDYouTubeKit,creationst/XCDYouTubeKit,0xced/XCDYouTubeKit,creationst/XCDYouTubeKit,mingsai/XCDYouTubeVideoPlayerViewController,twobitlabs/XCDYouTubeKit,mingsai/XCDYouTubeVideoPlayerViewController,twobitlabs/XCDYouTubeKit,0xced/XCDYouTubeKit,0xced/XCDYouTubeKit,mingsai/XCDYouTubeVideoPlayerViewController,0xced/XCDYouTubeKit,creationst/XCDYouTubeKit,twobitlabs/XCDYouTubeKit,mingsai/XCDYouTubeVideoPlayerViewController,creationst/XCDYouTubeKit