Clean up more unused variables in perl code

This is a continuation of 0c1aca4614, with some cleanup in:
- msvc_gendef.pl
- pgindent
- 005_negotiate_encryption.pl, as of an oversight of d39a49c1e4 that
has removed %params in test_matrix(), making also $server_config
useless.

Author: Dagfinn Ilmari Mannsåker
Discussion: https://postgr.es/m/87wmm4dkci.fsf@wibble.ilmari.org

src/interfaces/libpq/t/005_negotiate_encryption.pl

@@ -215,11 +215,6 @@ my @all_gssencmodes = ('disable', 'prefer', 'require');
 my @all_sslmodes = ('disable', 'allow', 'prefer', 'require');
 my @all_sslnegotiations = ('postgres', 'direct');
 
-my $server_config = {
-	server_ssl => 0,
-	server_gss => 0,
-};
-
 ###
 ### Run tests with GSS and SSL disabled in the server
 ###
@@ -272,7 +267,7 @@ testuser    require      *            *              - -> fail
 };
 
 note("Running tests with SSL and GSS disabled in the server");
-test_matrix($node, $server_config,
+test_matrix($node,
 	['testuser'], \@all_gssencmodes, \@all_sslmodes, \@all_sslnegotiations,
 	parse_table($test_table));
 
@@ -311,19 +306,15 @@ nossluser   .            disable      postgres       connect, authok
 	# Enable SSL in the server
 	$node->adjust_conf('postgresql.conf', 'ssl', 'on');
 	$node->reload;
-	$server_config->{server_ssl} = 1;
 
 	note("Running tests with SSL enabled in server");
-	test_matrix(
-		$node, $server_config,
-		[ 'testuser', 'ssluser', 'nossluser' ], ['disable'],
-		\@all_sslmodes, \@all_sslnegotiations,
+	test_matrix($node, [ 'testuser', 'ssluser', 'nossluser' ],
+		['disable'], \@all_sslmodes, \@all_sslnegotiations,
 		parse_table($test_table));
 
 	# Disable SSL again
 	$node->adjust_conf('postgresql.conf', 'ssl', 'off');
 	$node->reload;
-	$server_config->{server_ssl} = 0;
 }
 
 ###
@@ -336,7 +327,6 @@ SKIP:
 
 	$krb->create_principal('gssuser', $gssuser_password);
 	$krb->create_ticket('gssuser', $gssuser_password);
-	$server_config->{server_gss} = 1;
 
 	$test_table = q{
 # USER      GSSENCMODE   SSLMODE      SSLNEGOTIATION EVENTS                       -> OUTCOME
@@ -400,7 +390,7 @@ nogssuser   disable      disable      postgres       connect, authok
 	}
 
 	note("Running tests with GSS enabled in server");
-	test_matrix($node, $server_config, [ 'testuser', 'gssuser', 'nogssuser' ],
+	test_matrix($node, [ 'testuser', 'gssuser', 'nogssuser' ],
 		\@all_gssencmodes, $sslmodes, $sslnegotiations,
 		parse_table($test_table));
 }
@@ -423,7 +413,6 @@ SKIP:
 	# Enable SSL
 	$node->adjust_conf('postgresql.conf', 'ssl', 'on');
 	$node->reload;
-	$server_config->{server_ssl} = 1;
 
 	$test_table = q{
 # USER      GSSENCMODE   SSLMODE      SSLNEGOTIATION EVENTS                       -> OUTCOME
@@ -510,7 +499,6 @@ nossluser   disable      disable      postgres       connect, authok
 	note("Running tests with both GSS and SSL enabled in server");
 	test_matrix(
 		$node,
-		$server_config,
 		[ 'testuser', 'gssuser', 'ssluser', 'nogssuser', 'nossluser' ],
 		\@all_gssencmodes,
 		\@all_sslmodes,
@@ -546,8 +534,8 @@ sub test_matrix
 {
 	local $Test::Builder::Level = $Test::Builder::Level + 1;
 
-	my ($pg_node, $node_conf,
-		$test_users, $gssencmodes, $sslmodes, $sslnegotiations, %expected)
+	my ($pg_node, $test_users, $gssencmodes, $sslmodes, $sslnegotiations,
+		%expected)
 	  = @_;
 
 	foreach my $test_user (@{$test_users})

src/tools/msvc_gendef.pl

@@ -6,8 +6,6 @@ use warnings FATAL => 'all';
 use List::Util qw(min);
 use Getopt::Long;
 
-my @def;
-
 #
 # Script that generates a .DEF file for all objects in a directory
 #

src/tools/pgindent/pgindent

@@ -21,8 +21,7 @@ my $indent_opts =
 
 my $devnull = File::Spec->devnull;
 
-my ($typedefs_file, $typedef_str, @excludes,
-	$indent, $build, $diff,
+my ($typedefs_file, $typedef_str, @excludes, $indent, $diff,
 	$check, $help, @commits,);
 
 $help = 0;