removeNode: Remove node from network
In mickash/Adaptive-Bayesian-Networks: Adaptive Bayesian Networks.

Remove node from network. Only childless nodes can be removed. To remove nodes with children, either remove edges into the node's children (if the children are Noisy-Or or Dirichlet) or remove the children. If a layout matrix exists, the row corresponding to the removed node will also be removed. NB: A deep update must be performed on a network with a DB backend

1	removeNode(net, index, cn = NULL, deepUpdate = F, dropImages = F)

`net`	the current network
`index`	The index of the node to remove.
`cn`	A RODBC connection. Required if performing deep update.
`deepUpdate`	Specifies whether a deep update should be performed.
`dropImages`	Specifies if images should be dropped on a deepUpdate.