Update Enumerable.xml to remove unexpected ) characters (#10192)

Update to remove unexpected `)` characters from "This method can be used to produce a left outer join when it is combined with the GroupJoin) method." instances.

Author: kendaleiv

xml/System.Linq/Enumerable.xml

@@ -2976,7 +2976,7 @@ Each chunk except the last one will be of size `size`. The last chunk will conta
 
  The default value for reference and nullable types is `null`.
 
- This method can be used to produce a left outer join when it is combined with the <xref:System.Linq.Enumerable.GroupJoin%2A>) method.
+ This method can be used to produce a left outer join when it is combined with the <xref:System.Linq.Enumerable.GroupJoin%2A> method.
 
 ## Examples
  The following code examples demonstrate how to use <xref:System.Linq.Enumerable.DefaultIfEmpty%60%601%28System.Collections.Generic.IEnumerable%7B%60%600%7D%29> to provide a default value in case the source sequence is empty.
@@ -3060,7 +3060,7 @@ Each chunk except the last one will be of size `size`. The last chunk will conta
 ## Remarks
  This method is implemented by using deferred execution. The immediate return value is an object that stores all the information that is required to perform the action. The query represented by this method is not executed until the object is enumerated either by calling its `GetEnumerator` method directly or by using `foreach` in C# or `For Each` in Visual Basic.
 
- This method can be used to produce a left outer join when it is combined with the <xref:System.Linq.Enumerable.GroupJoin%2A>) method.
+ This method can be used to produce a left outer join when it is combined with the <xref:System.Linq.Enumerable.GroupJoin%2A> method.
 
 ## Examples
  The following code example demonstrates how to use the <xref:System.Linq.Enumerable.DefaultIfEmpty%60%601%28System.Collections.Generic.IEnumerable%7B%60%600%7D%2C%60%600%29> method and specify a default value. The first sequence is not empty and the second sequence is empty.