"And about these also Enoch, in the seventh generation from Adam, prophesied, saying, "Behold, the Lord came with many thousands of His holy ones," (Jude 14).
There is debate whether or not Jude was actually quoting the apocrphal book of Enoch or something else. This debate aside--if this is a quote from the book of Enoch--it does not affect the doctrine of inspiration, nor does it mean that the early church removed the book of Enoch because of its internal inconsistencies. First of all, the book of Enoch was not considered scripture by the Christian Church. There was some discussion on its canonicity by a few people, but the Christian Church did not include it in the Bible. Second, Jude only quoted something that was true in Enoch, and it does not mean that Enoch was inspired. In fact, Paul quotes Epimenides in Titus 1:12 but that does not mean that Epimenides was inspired.