Remove unused imports (#3241)

* Remove unused imports

* reinstate test helper

---------

Co-authored-by: alxndrsn <alxndrsn>

packages/pg-pool/test/lifetime-timeout.js

@@ -4,7 +4,6 @@ const expect = require('expect.js')
 
 const describe = require('mocha').describe
 const it = require('mocha').it
-const path = require('path')
 
 const Pool = require('../')
 

packages/pg-pool/test/max-uses.js

@@ -1,6 +1,5 @@
 const expect = require('expect.js')
 const co = require('co')
-const _ = require('lodash')
 
 const describe = require('mocha').describe
 const it = require('mocha').it

packages/pg-pool/test/releasing-clients.js

@@ -1,7 +1,6 @@
 const Pool = require('../')
 
 const expect = require('expect.js')
-const net = require('net')
 
 describe('releasing clients', () => {
   it('removes a client which cannot be queried', async () => {

packages/pg/lib/connection.js

@@ -1,6 +1,5 @@
 'use strict'
 
-var net = require('net')
 var EventEmitter = require('events').EventEmitter
 
 const { parse, serialize } = require('pg-protocol')

packages/pg/test/integration/client/query-error-handling-prepared-statement-tests.js

@@ -1,7 +1,6 @@
 'use strict'
 var helper = require('./test-helper')
 var Query = helper.pg.Query
-var util = require('util')
 
 var suite = new helper.Suite()
 

packages/pg/test/integration/client/query-error-handling-tests.js

@@ -1,6 +1,5 @@
 'use strict'
 var helper = require('./test-helper')
-var util = require('util')
 var Query = helper.pg.Query
 var DatabaseError = helper.pg.DatabaseError
 

packages/pg/test/integration/client/timezone-tests.js

@@ -1,6 +1,5 @@
 'use strict'
 var helper = require('./../test-helper')
-var exec = require('child_process').exec
 
 var oldTz = process.env.TZ
 process.env.TZ = 'Europe/Berlin'

packages/pg/test/integration/domain-tests.js

@@ -1,5 +1,4 @@
 'use strict'
-var async = require('async')
 
 var helper = require('./test-helper')
 var Query = helper.pg.Query

packages/pg/test/integration/gh-issues/1105-tests.js

@@ -1,4 +1,3 @@
-const pg = require('../../../lib')
 const helper = require('../test-helper')
 const suite = new helper.Suite()
 

packages/pg/test/integration/gh-issues/699-tests.js

@@ -1,6 +1,5 @@
 'use strict'
 var helper = require('../test-helper')
-var assert = require('assert')
 var copyFrom = require('pg-copy-streams').from
 
 if (helper.args.native) return

packages/pg/test/unit/connection-parameters/environment-variable-tests.js

@@ -1,5 +1,4 @@
 'use strict'
-var helper = require('../test-helper')
 const Suite = require('../../suite')
 
 var assert = require('assert')