polyfill: Update readme, remove obsolete limitations section

Author: js-choi

package-lock.json

@@ -1,7 +1,7 @@
 {
   "private": true,
   "name": "proposal-array-from-async",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "description": "A TC39 proposal and specification for an Array.fromAsync method.",
   "author": "J. S. Choi <[email protected]> (https://jschoi.org/)",
   "license": "MIT",

package.json

@@ -63,15 +63,3 @@ Like `Array.from`, `Array.fromAsync` is a **generic factory method**.
 It does not require that its `this` value be the `Array` constructor,
 and it can be transferred to or inherited by any other constructors
 that may be called with a single numeric argument.
-
-## Polyfill limitations
-The polyfill cannot exactly match the spec in one way.
-If it is attached to a **non-constructor function**
-(i.e., arrow functions or `class` methods),
-then `fromAsync` will incorrectly throw a TypeError,
-rather than correctly creating an array.
-
-This is because there is [no current way
-to test whether a function is not a constructor][no isConstructor].
-
-[no isConstructor]: https://stackoverflow.com/a/40922715

polyfill/README.md

@@ -1,6 +1,6 @@
 {
   "name": "array-from-async",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "description": "A polyfill for Array.fromAsync, which dumps an async iterator into an array.",
   "type": "module",
   "main": "index.mjs",