protected void clearComponent(int rowIndex) {
		clearComponents(new int[] { rowIndex });
	}
Clears the a defined components at the specified row. Clearing a component within a 
non-packed structure causes a defined component to be replaced with a number of 
undefined components. This may not the case when clearing a zero-length component or 
bit-field which may not result in such undefined components. In the case of a 
packed structure clearing is always completed without backfill.
@param rowIndex the composite row to be cleared
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/CompositeEditorModel.java