[tests] remove unused file depending on CGI.pm

lighttpd tests do not depend on CGI.pm.

remove *unused* file tests/docroot/www/404.fcgi
which used CGI::Fast, which depends on CGI.pm.

tests/docroot/www/404.fcgi

@@ -1,27 +0,0 @@
-#!/usr/bin/env perl
-
-use CGI::Fast qw(:standard);
-
-while (new CGI::Fast) {
-    my $request_uri = $ENV{'REQUEST_URI'};
-    print (STDERR "REQUEST_URI: $request_uri\n");
-    if ($request_uri =~ m/^\/dynamic\/200\// ) {
-      print header ( -status => 200,
-                     -type   => 'text/plain' );
-      print ("found here\n");
-    }
-    elsif ($request_uri =~ m|^/dynamic/302/| ) {
-      print header( -status=>302,
-                    -location => 'http://www.example.org/');
-    }
-    elsif ($request_uri =~ m/^\/dynamic\/404\// ) {
-      print header ( -status => 404
-                     -type   => 'text/plain' );
-      print ("Not found here\n");
-    }
-    else {
-      print header ( -status => 500,
-                     -type   => 'text/plain');
-      print ("huh\n");
-    };
-};

tests/docroot/www/Makefile.am

@@ -1,5 +1,4 @@
 EXTRA_DIST=\
-	404.fcgi \
 	404.html \
 	404.pl \
 	cgi-pathinfo.pl \