Revert "potter: set scene mode to auto HDR"

(reverted from commit c43f9bca61)

Change-Id: I7183a68c82c193c77d9d9d46a91e1dd9e6a83004

camera/CameraWrapper.cpp

@@ -123,7 +123,6 @@ static char *camera_fixup_getparams(int id, const char *settings)
     params.set("visionfw", "on");
     params.set("pdaf-control-mode", "on");
     params.set("af-roi-enabled", "on");
-    params.set("scene-mode", "auto_hdr");
     //params.set("auto-exposure", "frame-average");
     //params.set("dbg-log-aec", "frame-average");
     //params.set("dbg-log-awb", "frame-average");