IOh, and the scripture removed from the bible was removed for a reason. Jesus riding a dragon and, ugh, the book of Lilith don't exactly inspire belief, I can say that much.
There was never anything in the Bible about such things to be removed. There was a host of ancient literature that simply was never taken particularly seriously.
In some cases we have books produced by numerous Gnostic sects--though keeping in mind that Gnosticism is an umbrella term referring to a great many disparate groups whose beliefs and practices were often very divergent and the notion of them being "Gnostic" largely comes from a shared set of traits: Generally speaking a hyper-Platonic view that the material world was either evil or irrelevant, a belief in a complex cosmology of emanating spirits, and most central the belief in special secret knowledge which was available only for the special few.
In other cases we're largely dealing with material that was by and large considered dubious and untrustworthy, a number of "Acts" were written that often included an amalgam of traditions and legends about the Apostles and early Christian figures, such as Nicodemus. In some cases these works were regarded as pious fictions, in other cases they were just considered downright silly--an example might be the Infancy Gospel of Thomas (not to be confused with the other Gospel of Thomas), in the Infancy Gospel we have stories of Jesus turning clay into live pigeons as a small child, Jesus moments after He was born turning to His mother and telling her He's the Son of God, or an adolescent Jesus fixing Joseph's carpentry mistake in his shop by pulling one length of a board longer.
It might be best to refer to those sorts of things as a kind of ancient fanfiction.
In some cases those texts contained or portrayed some things that have been taken seriously as Christian tradition. For example it's the Protoevangelium of James that mentions that Mary's parents were named Anna and Joachim. The Acts of Peter records in detail Peter being arrested and executed upside-down. Those things have been preserved within the Christian tradition without the texts themselves being taken entirely too seriously.
"The Bible" rather specifically refers to a specific collection of texts which the above simply have never been part of.
Additionally, which text has Jesus riding a dragon? Also, I'm not aware of any "Book of Lilith", the idea of Lilith is based not on a text--that I'm aware--but instead medieval rabbinical attempts to reconcile the discrepancies between Genesis 1 and 2--Genesis 1 mentions the creation of male and female, Genesis 2 mentions the creation of Adam and later Eve from Adam's rib. A rabbinical theory was put forward that Adam had had two wives, the first named Lilith (a succubus-like creature of ancient near eastern mythology) who refused to obey Adam and so was cursed, and became the demon succubus thing of legend. But as far as I know, no ancient text mentions the Lilith legend as it's a product of the middle ages.
-CryptoLutheran