Obviously this is something you need to ask your doctor, but it helps to understand why you're taking these drugs.
T2 diabetics have a carbohydrate intolerance or insulin resistance, which means you need increasing quantities of insulin to process your carbs. Your body can't produce enough insulin so your blood sugars go up. The stress on your pancreas caused by an ever increasing insulin demand also means that you eventually start to produce less insulin.
Insulin injections help with the lack of insulin issue, but don't do anything for the insulin resistance. I suspect you'll still need to take some oral meds (the ones that deal with insulin resistance) but may be able to stop the others (the ones that deal with insulin production). I'm not sure what your particular meds do, so can't comment on whether you'll still need them.
I'm T1, so may have got this wrong, hopefully some T2s will post soon and correct and/or add to what I've written.
Good luck with your insulin.
ps Some doctors (particularly those in a hurry) are keener to add meds than remove them, so don't hesitate to ask if you still need them and even why you still need them.
pps I like your reincarnation as a sloth idea.