public void removeFactory(int rowIndex, int colIndex) {
		Row row = rows.get(rowIndex);
		row.removeField(colIndex);
		findWidth();
		formatMgr.modelChanged(this);
	}
Removes a field from the format.
@param rowIndex the row index of the field to remove.
@param colIndex the column index of the field to remove.
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/format/FieldFormatModel.java