Merge pull request #196 from GwtMaterialDesign/revert-190-master

Revert "Fixes #189, clear should not remove label, error label and listbox"

Author: kevzlou7979

src/main/java/gwt/material/design/addins/client/combobox/MaterialComboBox.java

@@ -46,7 +46,6 @@
 
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.Iterator;
 import java.util.List;
 
 import static gwt.material.design.addins.client.combobox.js.JsComboBox.$;
@@ -212,17 +211,6 @@ public void add(Widget child) {
         listbox.add(child);
     }
 
-    @Override
-    public void clear() {
-        final Iterator<Widget> it = iterator();
-        while (it.hasNext()) {
-        	final Widget widget = it.next();
-        	if (widget != label && widget != lblError && widget != listbox) {
-	            it.remove();
-        	}
-        }
-    }
-
     /**
      * Sets multi-value select boxes.
      */
@@ -594,4 +582,4 @@ public MaterialWidget getListbox() {
     public Label getLabel() {
         return label;
     }
-}
+}