XmlSerializer.xml — fix cache example (#2152)

* XmlSerializer.xml — fix cache example

* Removed unnecessary comma

Author: xerif

xml/System.Xml.Serialization/XmlSerializer.xml

@@ -169,11 +169,9 @@ if (ser == null)
     ser = new XmlSerializer(typeof(MyClass), myRoot);  
     // Cache the serializer.  
     serializers[key] = ser;  
-}  
-else  
-{  
-    // Use the serializer to serialize, or deserialize.  
-}  
+}
+
+// Use the serializer to serialize or deserialize.
 ```  
   
 ```vb  
@@ -195,9 +193,9 @@ If ser Is Nothing Then
     ser = New XmlSerializer(GetType([MyClass]), myRoot)  
     ' Cache the serializer.  
     serializers(key) = ser  
-Else   
-    ' Use the serializer to serialize, or deserialize.  
 End If  
+
+' Use the serializer to serialize or deserialize.
 ```  
   
 ## Serialization of ArrayList and Generic List  
@@ -2772,4 +2770,4 @@ xmlSerializer mySerializer=new XmlSerializer(typeof(LargeNumbers));
       </Docs>
     </Member>
   </Members>
-</Type>
+</Type>