diff --git a/gulp/tasks/optimizecss.js b/gulp/tasks/optimizecss.js
deleted file mode 100644
index 08a13eb307b9b72e4e73a1ffe04980139eff2b82..0000000000000000000000000000000000000000
--- a/gulp/tasks/optimizecss.js
+++ /dev/null
@@ -1,11 +0,0 @@
-const gulp = require('gulp');
-const nano = require('gulp-cssnano');
-const size = require('gulp-size');
-
-
-module.exports = (source, options, dist) => {
-    return gulp.src(source)
-        .pipe(nano(options))
-        .pipe(gulp.dest(dist))
-        .pipe(size());
-};