chore: clean up linting issues introduced by SDAM backport

Author: mbroadst

lib/sdam/monitoring.js

@@ -1,7 +1,6 @@
 'use strict';
 
 const ServerDescription = require('./server_description').ServerDescription;
-const ServerType = require('./server_description').ServerType;
 const calculateDurationInMs = require('../utils').calculateDurationInMs;
 
 /**

test/tests/functional/server_tests.js

@@ -1044,7 +1044,7 @@ describe('Server tests', function() {
           let err;
           try {
             expect(error).to.be.an.instanceOf(Error);
-            expect(error.message).to.match(/but this version of the Node.js Driver requires/)
+            expect(error.message).to.match(/but this version of the Node.js Driver requires/);
           } catch (e) {
             err = e;
           }