Remove the nsp task

The `nsp` package is deprecated and it's now integrated in npm.

Author: sindresorhus

gulpfile.js

@@ -3,14 +3,9 @@ const path = require('path');
 const gulp = require('gulp');
 const mocha = require('gulp-mocha');
 const istanbul = require('gulp-istanbul');
-const nsp = require('gulp-nsp');
 const plumber = require('gulp-plumber');
 const coveralls = require('gulp-coveralls');
 
-gulp.task('nsp', cb => {
-  nsp({package: path.resolve('package.json')}, cb);
-});
-
 gulp.task('pre-test', () =>
   gulp.src('lib/**/*.js')
     .pipe(istanbul({includeUntested: true}))
@@ -44,5 +39,4 @@ gulp.task('coveralls', ['test'], () => {
     .pipe(coveralls());
 });
 
-gulp.task('prepublish', ['nsp']);
 gulp.task('default', ['test', 'coveralls']);

package-lock.json

@@ -17,8 +17,7 @@
   "scripts": {
     "test": "xo && gulp",
     "postinstall": "yodoctor",
-    "postupdate": "yodoctor",
-    "prepublish": "gulp prepublish"
+    "postupdate": "yodoctor"
   },
   "files": [
     "lib"
@@ -77,12 +76,10 @@
     "gulp-coveralls": "^0.1.0",
     "gulp-istanbul": "^1.0.0",
     "gulp-mocha": "^3.0.1",
-    "gulp-nsp": "^2.1.0",
     "gulp-plumber": "^1.0.0",
     "mocha": "^3.2.0",
     "mockery": "^2.0.0",
     "nock": "^9.0.5",
-    "nsp": "^2.2.0",
     "proxyquire": "^1.0.1",
     "registry-url": "^3.0.0",
     "sinon": "^1.12.1",