Remove trailing backslash (#8571)

Author: crpz1

xml/System.Globalization/CultureInfo.xml

@@ -95,7 +95,7 @@
  [CultureInfo object serialization](#Serialization)\
  [Control Panel overrides](#CPanel)\
  [Alternate sort orders](#AlternateSort)\
- [Culture and Windows apps](#Windows)\
+ [Culture and Windows apps](#Windows)
 
 <a name="CultureNames"></a>
 ## Culture names and identifiers