test: remove unused variables from TLS tests

Some of the TLS tests have variables that do not get used. This removes
those variables.

PR-URL: https://github.com/nodejs/node/pull/4424
Reviewed-By: Johan Bergström <bugs@bergstroem.nu>

test/parallel/test-tls-0-dns-altname.js

@@ -9,7 +9,6 @@ if (!common.hasCrypto) {
 var tls = require('tls');
 
 var fs = require('fs');
-var net = require('net');
 
 var common = require('../common');
 

test/parallel/test-tls-async-cb-after-socket-end.js

@@ -2,7 +2,6 @@
 
 var common = require('../common');
 
-var assert = require('assert');
 var path = require('path');
 var fs = require('fs');
 var constants = require('constants');

test/parallel/test-tls-client-default-ciphers.js

@@ -19,7 +19,7 @@ function test1() {
   };
 
   try {
-    var s = tls.connect(common.PORT);
+    tls.connect(common.PORT);
   } catch (e) {
     assert(e instanceof Done);
   }

test/parallel/test-tls-close-error.js

@@ -10,7 +10,6 @@ if (!common.hasCrypto) {
 var tls = require('tls');
 
 var fs = require('fs');
-var net = require('net');
 
 var errorCount = 0;
 var closeCount = 0;

test/parallel/test-tls-close-notify.js

@@ -9,7 +9,6 @@ if (!common.hasCrypto) {
 var tls = require('tls');
 
 var fs = require('fs');
-var net = require('net');
 
 var ended = 0;
 

test/parallel/test-tls-connect-secure-context.js

@@ -1,6 +1,5 @@
 'use strict';
 const common = require('../common');
-const assert = require('assert');
 
 if (!common.hasCrypto) {
   console.log('1..0 # Skipped: missing crypto');

test/parallel/test-tls-destroy-whilst-write.js

@@ -1,5 +1,4 @@
 'use strict';
-var assert = require('assert');
 var common = require('../common');
 
 if (!common.hasCrypto) {

test/parallel/test-tls-fast-writing.js

@@ -20,7 +20,7 @@ var server = tls.createServer(options, onconnection);
 var gotChunk = false;
 var gotDrain = false;
 
-var timer = setTimeout(function() {
+setTimeout(function() {
   console.log('not ok - timed out');
   process.exit(1);
 }, common.platformTimeout(500));

test/parallel/test-tls-handshake-error.js

@@ -10,7 +10,6 @@ if (!common.hasCrypto) {
 var tls = require('tls');
 
 var fs = require('fs');
-var net = require('net');
 
 var errorCount = 0;
 var closeCount = 0;

test/parallel/test-tls-handshake-nohang.js

@@ -1,6 +1,5 @@
 'use strict';
 var common = require('../common');
-var assert = require('assert');
 
 if (!common.hasCrypto) {
   console.log('1..0 # Skipped: missing crypto');

test/parallel/test-tls-invoke-queued.js

@@ -9,7 +9,6 @@ if (!common.hasCrypto) {
 var tls = require('tls');
 
 var fs = require('fs');
-var net = require('net');
 
 
 var received = '';

test/parallel/test-tls-key-mismatch.js

@@ -14,8 +14,6 @@ var options = {
   cert: fs.readFileSync(common.fixturesDir + '/keys/agent2-cert.pem')
 };
 
-var cert = null;
-
 assert.throws(function() {
   tls.createSecureContext(options);
 });

test/parallel/test-tls-legacy-onselect.js

@@ -17,10 +17,6 @@ function filenamePEM(n) {
   return require('path').join(common.fixturesDir, 'keys', n + '.pem');
 }
 
-function loadPEM(n) {
-  return fs.readFileSync(filenamePEM(n));
-}
-
 var server = net.Server(function(raw) {
   var pair = tls.createSecurePair(null, true, false, false);
   pair.on('error', function() {});

test/parallel/test-tls-max-send-fragment.js

@@ -9,7 +9,6 @@ if (!common.hasCrypto) {
 var tls = require('tls');
 
 var fs = require('fs');
-var net = require('net');
 
 var common = require('../common');
 

test/parallel/test-tls-ocsp-callback.js

@@ -41,7 +41,6 @@ function test(testOptions, cb) {
   var clientSecure = 0;
   var ocspCount = 0;
   var ocspResponse;
-  var session;
 
   if (testOptions.pfx) {
     delete options.key;

test/parallel/test-tls-peer-certificate-encoding.js

@@ -11,7 +11,6 @@ var tls = require('tls');
 var fs = require('fs');
 var util = require('util');
 var join = require('path').join;
-var spawn = require('child_process').spawn;
 
 var options = {
   key: fs.readFileSync(join(common.fixturesDir, 'keys', 'agent5-key.pem')),

test/parallel/test-tls-peer-certificate-multi-keys.js

@@ -11,7 +11,6 @@ var tls = require('tls');
 var fs = require('fs');
 var util = require('util');
 var join = require('path').join;
-var spawn = require('child_process').spawn;
 
 var options = {
   key: fs.readFileSync(join(common.fixturesDir, 'agent.key')),

test/parallel/test-tls-peer-certificate.js

@@ -11,7 +11,6 @@ var tls = require('tls');
 var fs = require('fs');
 var util = require('util');
 var join = require('path').join;
-var spawn = require('child_process').spawn;
 
 var options = {
   key: fs.readFileSync(join(common.fixturesDir, 'keys', 'agent1-key.pem')),

test/parallel/test-tls-request-timeout.js

@@ -29,7 +29,7 @@ var server = tls.Server(options, function(socket) {
 });
 
 server.listen(common.PORT, function() {
-  var socket = tls.connect({
+  tls.connect({
     port: common.PORT,
     rejectUnauthorized: false
   });

test/parallel/test-tls-socket-default-options.js

@@ -9,7 +9,6 @@ if (!common.hasCrypto) {
 const tls = require('tls');
 
 const fs = require('fs');
-const net = require('net');
 
 const sent = 'hello world';
 

test/parallel/test-tls-ticket-cluster.js

@@ -42,7 +42,6 @@ if (cluster.isMaster) {
 
   function fork() {
     var worker = cluster.fork();
-    var workerReqCount = 0;
     worker.on('message', function(msg) {
       console.error('[master] got %j', msg);
       if (msg === 'reused') {