Grammar - Delete unneeded "the" (dotnet#7366)

In the AccessRule class definition, changed "...information about the how the rule..." to "...information about how the rule..."

Author: Nicholas Piazza

xml/System.Security.AccessControl/AccessRule.xml

@@ -23,7 +23,7 @@
   </Base>
   <Interfaces />
   <Docs>
-    <summary>Represents a combination of a user's identity, an access mask, and an access control type (allow or deny). An <see cref="T:System.Security.AccessControl.AccessRule" /> object also contains information about the how the rule is inherited by child objects and how that inheritance is propagated.</summary>
+    <summary>Represents a combination of a user's identity, an access mask, and an access control type (allow or deny). An <see cref="T:System.Security.AccessControl.AccessRule" /> object also contains information about how the rule is inherited by child objects and how that inheritance is propagated.</summary>
     <remarks>To be added.</remarks>
   </Docs>
   <Members>