Yes it is possible to skip auto-leveling. However, auto-leveling isn’t just for accuracy in the first layer, the rest of the layers (i.e. the whole print) are dependent on the first layer. Bad first layers often lead to failed prints.
A better solution would be to figure out why you are having problems with auto-leveling and fix those. The first thing to check is the nozzle. Without an filament loaded, heat the nozzle to the high end of your last loaded filament, turn the printer off, and give the nozzle a good cleaning with a scotch brite pad or a brass brush (the printer must be off to use this or you risk damage to the controller board). Next clean the four corner washers with isopropyl alcohol. A light sanding with the scotch brite pad, the brass brush, or some very fine grit sand paper (1200+).
Without loading any filament, heat the nozzle to 140 and send a G28 followed by a G29 V4. If the printer doesn’t complete the auto-level sequence, then you may need to level the X axis.
Take a look at https://forum.lulzbot.com/t/taz-6-probing-problem/6841/1 for a quick check and leveling procedure. Also, take a look at https://forum.lulzbot.com/t/solved-taz-6-auto-leveling-is-0-5mm-off-now-perfect-to-0-01mm/6250/1 which discusses even finer tuning of the bed.