[tests] remove some tests duplicated in mod-cgi.t

tests/mod-cgi.t

@@ -8,7 +8,7 @@ BEGIN {
 
 use strict;
 use IO::Socket;
-use Test::More tests => 18;
+use Test::More tests => 15;
 use LightyTest;
 
 my $tf = LightyTest->new();
@@ -81,14 +81,6 @@ EOF
 $t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.0', 'HTTP-Status' => 200, 'HTTP-Content' => 'CGI/1.1' } ];
 ok($tf->handle_http($t) == 0, 'cgi-env: GATEWAY_INTERFACE');
 
-$t->{REQUEST} = ( <<EOF
-GET /get-header.pl?HTTP_HOST HTTP/1.0
-Host: www.example.org
-EOF
- );
-$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.0', 'HTTP-Status' => 200, 'HTTP-Content' => 'www.example.org' } ];
-ok($tf->handle_http($t) == 0, 'cgi-env: HTTP_HOST');
-
 $t->{REQUEST}  = ( <<EOF
 GET /get-header.pl?HTTP_XX_YY123 HTTP/1.0
 xx-yy123: foo
@@ -102,23 +94,7 @@ GET /get-header.pl?HTTP_HOST HTTP/1.0
 Host: www.example.org
 EOF
  );
-$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.0', 'HTTP-Status' => 200, 'HTTP-Content' => 'www.example.org' } ];
-ok($tf->handle_http($t) == 0, 'cgi-env: HTTP_HOST');
-
-$t->{REQUEST}  = ( <<EOF
-GET /get-header.pl?HTTP_HOST HTTP/1.0
-Host: www.example.org
-EOF
- );
-$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.0', 'HTTP-Status' => 200, 'HTTP-Content' => 'www.example.org' } ];
-ok($tf->handle_http($t) == 0, 'cgi-env: HTTP_HOST');
-
-$t->{REQUEST}  = ( <<EOF
-GET /get-header.pl?HTTP_HOST HTTP/1.0
-Host: www.example.org
-EOF
- );
-$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.0', 'HTTP-Status' => 200, 'Content-Type' => 'text/plain' } ];
+$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.0', 'HTTP-Status' => 200, 'HTTP-Content' => 'www.example.org', 'Content-Type' => 'text/plain' } ];
 ok($tf->handle_http($t) == 0, 'cgi-env: HTTP_HOST');
 
 $t->{REQUEST}  = ( <<EOF