diff --git a/libraries/metrics/Gruntfile.js b/libraries/metrics/Gruntfile.js
deleted file mode 100644
index c775dcb9ec..0000000000
--- a/libraries/metrics/Gruntfile.js
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * decaffeinate suggestions:
- * DS102: Remove unnecessary code created because of implicit returns
- * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
- */
-module.exports = function(grunt) {
-	grunt.initConfig({
-		coffee: {
-			unit_tests: {
-				expand: true,
-				cwd:  "test/unit/coffee",
-				src: ["**/*.coffee"],
-				dest: "test/unit/js/",
-				ext:  ".js"
-			}
-		},
-
-		clean: {
-			unit_tests: ["test/unit/js"]
-		},
-
-		mochaTest: {
-			unit: {
-				options: {
-					reporter: grunt.option('reporter') || 'spec',
-					grep: grunt.option("grep")
-				},
-
-				src: ["test/unit/js/**/*.js"]
-			}
-		}});
-
-	grunt.loadNpmTasks('grunt-contrib-coffee');
-	grunt.loadNpmTasks('grunt-contrib-clean');
-	grunt.loadNpmTasks('grunt-mocha-test');
-	grunt.loadNpmTasks('grunt-execute');
-	grunt.loadNpmTasks('grunt-bunyan');
-
-	grunt.registerTask('compile:unit_tests', ['clean:unit_tests', 'coffee:unit_tests']);
-	return grunt.registerTask('test:unit',          ['compile:unit_tests', 'mochaTest:unit']);
-};