Revert "Commit updated Javascript packages"

This reverts commit a88734348a.

build/javascript/node_modules/@babel/runtime/helpers/esm/classPrivateFieldSet.js

@@ -1,19 +0,0 @@
-export default function _classPrivateFieldSet(receiver, privateMap, value) {
-  var descriptor = privateMap.get(receiver);
-
-  if (!descriptor) {
-    throw new TypeError("attempted to set private field on non-instance");
-  }
-
-  if (descriptor.set) {
-    descriptor.set.call(receiver, value);
-  } else {
-    if (!descriptor.writable) {
-      throw new TypeError("attempted to set read only private field");
-    }
-
-    descriptor.value = value;
-  }
-
-  return value;
-}