Remove redundant rescript-relevant run-scripts

Author: jihchi

package.json

@@ -30,10 +30,8 @@
     "access": "public"
   },
   "scripts": {
-    "build": "npm run build:res && snowpack build",
-    "build:res": "rescript build",
-    "clean": "npm run clean:res",
-    "clean:res": "rescript clean",
+    "build": "snowpack build",
+    "clean": "rescript clean",
     "start": "snowpack dev",
     "test": "web-test-runner \"src/**/__tests__/*.bs.js\""
   },