removeChild method
Implementation
void removeChild(DomRenderObject child) {
if (child case DomRenderFragment(isAttached: true)) {
child.removeChildren(this);
child.parent = null;
return;
}
if (kVerboseMode) {
print("Remove child ${child.node} of $node");
}
assert(node == child.node.parentNode, 'Child node must be a child of this element.');
node.removeChild(child.node);
child.parent = null;
}