Documentation: Fix typo in testing/sysfs-class-cxl

Remove repeated words: "the the lowest" and "this this kernel"
Signed-off-by: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Acked-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211006155017.135592-1-sohaib.amhmd@gmail.com

Documentation/ABI/testing/sysfs-class-cxl

@@ -103,8 +103,8 @@ What:           /sys/class/cxl/<afu>/api_version_compatible
 Date:           September 2014
 Contact:        linuxppc-dev@lists.ozlabs.org
 Description:    read only
-                Decimal value of the the lowest version of the userspace API
-                this this kernel supports.
+                Decimal value of the lowest version of the userspace API
+                this kernel supports.
 Users:		https://github.com/ibm-capi/libcxl