How to remove tap with too much tape
The fact that you can see the tape has no bearing on the success of the job. If it doesn't leak consider the job well done. If the exposed tape gives you worry that someone will see the tape and say it is a bad job, tell them that is how much you had to use to get a tight seal. If you really want to remove the excess tape, take a wire brush and carefully use it to remove the excess tape.