No need to pin purescript-st

Author: rnons

bower.json

@@ -31,8 +31,7 @@
     "purescript-unsafe-coerce": "^4.0.0",
     "purescript-bifunctors": "^4.0.0",
     "purescript-refs": "^4.1.0",
-    "purescript-foreign": "^5.0.0",
-    "purescript-st": "4.0.0"
+    "purescript-foreign": "^5.0.0"
   },
   "devDependencies": {
     "purescript-js-timers": "^4.0.0",