The only way to eliminate fillers like these is to move them from your subconscious mind to your conscious mind.
You need someone to literally count the number of times you use one of the above fillers in a speech. Then you need to have a signal they give you whenever you use one of these in a presentation so you become disciplined to:
a) being aware of it
b) eliminating them from your speech.
I recommend that you find a buddy to help you eliminate this in your everyday conversation so it becomes natural for you.