topo/basic: also remove .windows from Makefile.am

ompi/mca/topo/basic/Makefile.am

@@ -4,6 +4,7 @@
 #                         reserved.
 # Copyright (c) 2011-2013 INRIA.  All rights reserved.
 # Copyright (c) 2011-2013 Université Bordeaux 1
+# Copyright (c) 2015 Cisco Systems, Inc.  All rights reserved.
 # $COPYRIGHT$
 #
 # Additional copyrights may follow
@@ -11,8 +12,6 @@
 # $HEADER$
 #
 
-EXTRA_DIST = .windows
-
 sources = \
     topo_basic.h \
     topo_basic_component.c