Removed unused package

package-lock.json

@@ -2089,12 +2089,6 @@
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
       "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
     },
-    "nan": {
-      "version": "2.14.1",
-      "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.1.tgz",
-      "integrity": "sha512-isWHgVjnFjh2x2yuJ/tj3JbwoHu3UC2dX5G/88Cm24yB6YopVgxvBObDY7n5xW6ExmFhJpSEQqFPvq9zaXc8Jw==",
-      "dev": true
-    },
     "natural-compare": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/natural-compare/-/natural-compare-1.4.0.tgz",
@@ -2503,15 +2497,6 @@
       "integrity": "sha512-VUJ49FC8U1OxwZLxIbTTrDvLnf/6TDgxZcK8wxR8zs13xpx7xbG60ndBlhNrFi2EMuFRoeDoJO7wthSLq42EjA==",
       "dev": true
     },
-    "sleep": {
-      "version": "6.3.0",
-      "resolved": "https://registry.npmjs.org/sleep/-/sleep-6.3.0.tgz",
-      "integrity": "sha512-+WgYl951qdUlb1iS97UvQ01pkauoBK9ML9I/CMPg41v0Ze4EyMlTgFTDDo32iYj98IYqxIjDMRd+L71lawFfpQ==",
-      "dev": true,
-      "requires": {
-        "nan": "^2.14.1"
-      }
-    },
     "slice-ansi": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-2.1.0.tgz",

package.json

@@ -49,7 +49,6 @@
     "eslint": "^7.12.1",
     "lodash": "^4.17.20",
     "mocha": "^8.1.3",
-    "nyc": "^15.1.0",
-    "sleep": "^6.3.0"
+    "nyc": "^15.1.0"
   }
 }