On page 59, point #4, it lists attempted suicide as a reason for disfellowshipping. Has it ever been removed?
No, it has not been removed. However, it has a line at the end of the point saying that in most of the attempted suicide cases, judicial hearings are not required.
Have the Jehovah's Witnesses added some hand-written notes to this point?
No policy letter has been issued on this point since 2010. No marginal notes either.
In theory, can one still be disfellowshipped for attempted suicide?
Suicide/Attempted suicide in itself is not a disfellowshipping offence. However, if the attempt for suicide was made to run away from a gross wrongdoing, the wrongdoing will form a reason for DF'ing. In some countries, attempted suicide is still punishable by law. See Section 309 of Indian Penal Code which criminalizes attempted suicide. Not all attempted suicide cases are due to depression or mental illness.
I noticed that they don't call these reasons "reasons for disfellowshipping" but rather "reasons for forming a judicial committee." Even though the two seem to be the same?
No, these two are not the same. Not all Judicial Committees end up in a disfellowshipping verdict. There are many cases which just end up in a judicial reproof of 3/6/12 months or so.