Remove .NET Framework only exception

Author: eduardo-vp

xml/System.Threading/Mutex.xml

@@ -1087,11 +1087,7 @@ There was some other error. The `HResult` property may provide more information.
  ]]></format>
         </remarks>
         <exception cref="T:System.ArgumentException">
-          <paramref name="name" /> is an empty string.
-
--or-
-
-.NET Framework only: <paramref name="name" /> is longer than MAX_PATH (260 characters).</exception>
+          <paramref name="name" /> is an empty string.</exception>
         <exception cref="T:System.ArgumentNullException">
           <paramref name="name" /> is <see langword="null" />.</exception>
         <exception cref="T:System.Threading.WaitHandleCannotBeOpenedException">A synchronization object with the provided <paramref name="name" /> cannot be created. A synchronization object of a different type might have the same name. In some cases, this exception may be thrown for invalid names.