[GUI] Nodes scale incorrectly in certain cases for margins.

[sinnwrig]

Under specific circumstances, margins do not scale a node correctly and can shrink a node by too much. Behavior can be seen in the Console window of the current editor.

Commenting out the margin scaling at Line 194+ in LayoutNode.Core.cs appears to fix margins on the console specific, but results in the rest of the UI breaking. For now, Console can live with badly laid-out margins until a fix is pushed.