Revert "Commit updated Javascript packages"

This reverts commit a88734348a.

build/javascript/node_modules/@babel/runtime/helpers/classStaticPrivateFieldSpecSet.js

@@ -1,19 +0,0 @@
-function _classStaticPrivateFieldSpecSet(receiver, classConstructor, descriptor, value) {
-  if (receiver !== classConstructor) {
-    throw new TypeError("Private static access of wrong provenance");
-  }
-
-  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;
-}
-
-module.exports = _classStaticPrivateFieldSpecSet;