Also, I'm going back on what I said in my last commit, and removing the converter for version 3 in EditorMaterialComponent::ConvertVersion. The code that I had put in before wouldn't work because it was relying on the new m_defaultMaterialAsset which will be empty for old data. The only way we could support version conversion is if we preserve legacy versions of multiple types like EditorMaterialComponentSlot and MaterialAssignmentId. Since this serialization version is old and pre-dates the public release of O3DE, it's unlikely that we need to continue supporting this version so isn't worth maintaining.
Signed-off-by: santorac <55155825+santorac@users.noreply.github.com>
Chris Santora
abec7a4f5b