Revert #5033 (#5077)

WHIP passthrough ingress has been failing DTLS

pkg/rtc/config.go

@@ -81,10 +81,6 @@ func NewWebRTCConfig(conf *config.Config) (*WebRTCConfig, error) {
 	// we don't want to use active TCP on a server, clients should be dialing
 	webRTCConfig.SettingEngine.DisableActiveTCP(true)
 
-	if rtcConf.UseICELite {
-		_ = webRTCConfig.SettingEngine.SetAnsweringDTLSRole(webrtc.DTLSRoleServer)
-	}
-
 	if rtcConf.PacketBufferSize == 0 {
 		rtcConf.PacketBufferSize = 500
 	}