MQE-416: Remove the unused actionGroup defaultEntity property

Author: tomreece

src/Magento/FunctionalTestingFramework/Test/etc/sampleActionGroup.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="testSchema.xsd">
-    <actionGroup name="sampleReusableActions" defaultEntity="testEntity">
+    <actionGroup name="sampleReusableActions">
         <arguments>
             <argument name="product" defaultValue="_defaultProduct" />
             <argument name="category" defaultValue="_defaultCategory" />

src/Magento/FunctionalTestingFramework/Test/etc/testSchema.xsd

@@ -38,7 +38,6 @@
             </xs:element>
         </xs:choice>
         <xs:attribute type="xs:string" name="name" use="required"/>
-        <xs:attribute type="xs:string" name="defaultEntity"/>
     </xs:complexType>
     <xs:complexType name="annotationsType">
         <xs:choice minOccurs="0" maxOccurs="unbounded">