The Protestants didn't "cut the parts they didn't like"; the books of the Old Testament they cut, the Apocrypha, actually don't appear in the Masoretic Text of the Jewish Tanakh, which was canonized around the second century C.E.
It should be noted that the Apocrypha, and several other books, however, do appear in the Septuagint, the Greek Jewish Bible, which was canonized earlier. A reason those extra books could have been removed from the Masoretic Text was because they were written originally in Greek, well after the other texts, as opposed to the other texts, which were written in Hebrew.