using Kaltura.UseAppleAdaptive=false variable you can configure Kaltura player to do not use HLS delivery, so probably an mp4 flavor could be delivered by the player. In this way Kaltura don't use the nginx-vod module, that produces a segmentation on the fly of the video files in order to obtain a HTTP HLS.
I know that is not the best option, but on the other hand from your sample it seems you are using a Kaltura Saas (or a trial version), so if you prefer use HTTP HLS, in my humble opinion, maybe the better way is send a support request to Kaltura Support.