(fix) e2e test delete test device bug.

e2etests/test/registry.js

@@ -281,15 +281,11 @@ describe('Registry', function () {
             scopedDeviceCreateResult.deviceScope = uuid.v4();
             registry.update(scopedDeviceCreateResult, function(updateErr) {
               assert(updateErr, 'Scoped device was incorrectly allowed to update its scope property.');
-              var edgeDeleteResult;
-              var scopedDeleteResult;
-              registry.delete(edgeCreateResult.deviceId, function (err) {
-                edgeDeleteResult = err;
+              registry.delete(edgeCreateResult.deviceId, function (edgeDeleteError) {
+                registry.delete(scopedDeviceCreateResult.deviceId, function (scopedDeleteError) {
+                  done(edgeDeleteError || scopedDeleteError);
+                });
               });
-              registry.delete(scopedDeviceCreateResult.deviceId, function (err) {
-                scopedDeleteResult = err;
-              });
-              done(edgeDeleteResult || scopedDeleteResult);
             });
           }
         });

provisioning/e2e/package-lock.json

@@ -112,6 +112,7 @@
 			"version": "1.5.0",
 			"resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
 			"integrity": "sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==",
+			"optional": true,
 			"requires": {
 				"file-uri-to-path": "1.0.0"
 			}
@@ -397,7 +398,8 @@
 		"file-uri-to-path": {
 			"version": "1.0.0",
 			"resolved": "https://registry.npmjs.org/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz",
-			"integrity": "sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw=="
+			"integrity": "sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==",
+			"optional": true
 		},
 		"fs.realpath": {
 			"version": "1.0.0",