remove sharp dependency

Author: dpatanin

package.json

@@ -28,9 +28,7 @@
     "react": "^16.9.0",
     "react-burger-menu": "^2.6.11",
     "react-dom": "^16.9.0",
-    "react-helmet": "^5.2.1",
-    "minipass": "^2.8.5",
-    "sharp": "^0.23.0"
+    "react-helmet": "^5.2.1"
   },
   "devDependencies": {
     "node-sass": "^4.12.0",