Update text that describes traversal pseudo code

[pwrose]

The following text seems to be obsolete:

The following traversal pseudo code assumes that all fields have been decoded and specifically that the split-list delta encoded fields are decoded into fields named like in the following example: xCoordBig/xCoordSmall decode into xCoordList.

[arose]

Shortened to "The following traversal pseudo code assumes that all fields have been decoded.", see 934bce2.