[gstreamer] Remove data and time set by Android camera HAL. Contributes to JB#11390
[gstreamer] Remove data and time set by Android camera HAL. Contributes to JB#11390

date and time exif tag set by HAL does not always take into account time zone.
Application should set the proper tag.

sailfishos/gst-droidcamsrc,sailfishos/gst-droidcamsrc,sailfishos/gst-droidcamsrc