aplinfo: remove leftover cruft

this was probably missed in a previous refactoring, the
filehandle is only opened and closed here and read_aplinfo()
already opens and closes the file itself.

PVE/APLInfo.pm

@@ -180,10 +180,7 @@ sub download_aplinfo {
 
 	# test syntax
 	eval { 
-	    my $fh = IO::File->new("<$tmp") ||
-		die "unable to open file '$tmp' - $!\n";
 	    read_aplinfo($tmp, {}, $aplurl, 1);
-	    close($fh);
 	};
 	die "update failed: $@" if $@;