Remove debugging leftover

[Ralf Wildenhues]

Oops.

    * automake.in (handle_tests): Remove debugging leftover.

diff --git a/automake.in b/automake.in
index ee1391f..3b96f1b 100755
--- a/automake.in
+++ b/automake.in
@@ -2328,7 +2328,6 @@ sub handle_compile ()
        # Items in CONFIG_HEADER are never in $(srcdir) so it is safe
        # to just put @am__isrc@ right after `-I.', without a space.
        ($default_includes = ' ' . uniq (@incs)) =~ s/ @/@/;
-       print "D: $default_includes";
       }
 
     my (@mostly_rms, @dist_rms);