Revert "Make PyProxy of async iterator JavaScript async iterables"

This reverts commit 45104830ea.

src/core/pyproxy.ts

@@ -1265,10 +1265,6 @@ export class PyAsyncIterator extends PyProxy {
 export interface PyAsyncIterator extends PyAsyncIteratorMethods {}
 
 export class PyAsyncIteratorMethods {
-  /** @private */
-  [Symbol.asyncIterator]() {
-    return this;
-  }
   /**
    * This translates to the Python code ``anext(obj)``. Returns the next value
    * of the asynchronous iterator. The argument will be sent to the Python

src/tests/test_pyproxy.py

@@ -1063,7 +1063,7 @@ def test_pyproxy_this2(selenium):
 
 
 @run_in_pyodide
-async def test_async_iter1(selenium):
+async def test_async_iter(selenium):
     from pyodide.code import run_js
 
     class Gen:
@@ -1089,41 +1089,6 @@ async def test_async_iter1(selenium):
     assert (await p).to_py() == [1, 2]
 
 
-@run_in_pyodide
-async def test_async_iter2(selenium):
-    from pyodide.code import run_js
-
-    class Gen:
-        def __init__(self):
-            self.i = 0
-
-        def __aiter__(self):
-            return self
-
-        async def __anext__(self):
-            self.i += 1
-            if self.i > 2:
-                raise StopAsyncIteration
-            return self.i
-
-    g = Gen()
-
-    p = run_js(
-        """
-        async (g) => {
-            assert(() => g instanceof pyodide.ffi.PyAsyncIterable);
-            let r = [];
-            for await (let a of g) {
-                r.push(a);
-            }
-            return r;
-        }
-    """
-    )(g)
-
-    assert (await p).to_py() == [1, 2]
-
-
 @run_in_pyodide
 def test_gen(selenium):
     from pyodide.code import run_js
@@ -1291,7 +1256,7 @@ def test_gen_throw(selenium):
 
 
 @run_in_pyodide
-async def test_async_gen1(selenium):
+async def test_async_gen(selenium):
     from pyodide.code import run_js
 
     async def g():
@@ -1324,28 +1289,6 @@ async def test_async_gen1(selenium):
     ]
 
 
-@run_in_pyodide
-async def test_async_gen2(selenium):
-    from pyodide.code import run_js
-
-    async def g():
-        for n in range(3):
-            yield n
-
-    p = run_js(
-        """
-        async (g) => {
-            let result = [];
-            for await (let x of g){
-                result.push(x);
-            }
-            return result;
-        }
-    """
-    )(g())
-    assert (await p).to_py() == [0, 1, 2]
-
-
 @run_in_pyodide
 async def test_async_gen_return(selenium):
     from pyodide.code import run_js