Revert any changes to async with

Author: ncoghlan

Python/compile.c

@@ -4196,15 +4196,14 @@ expr_constant(struct compiler *c, expr_ty e)
 static int
 compiler_async_with(struct compiler *c, stmt_ty s, int pos)
 {
-    basicblock *block, *finally, *finally_await;
+    basicblock *block, *finally;
     withitem_ty item = asdl_seq_GET(s->v.AsyncWith.items, pos);
 
     assert(s->kind == AsyncWith_kind);
 
     block = compiler_new_block(c);
     finally = compiler_new_block(c);
-    finally_await = compiler_new_block(c);
-    if (!block || !finally || !finally_await)
+    if (!block || !finally)
         return 0;
 
     /* Evaluate EXPR */
@@ -4213,7 +4212,6 @@ compiler_async_with(struct compiler *c, stmt_ty s, int pos)
     ADDOP(c, BEFORE_ASYNC_WITH);
     ADDOP(c, GET_AWAITABLE);
     ADDOP_O(c, LOAD_CONST, Py_None, consts);
-    ADDOP_JREL(c, DEFER_PENDING_UNTIL, block);
     ADDOP(c, YIELD_FROM);
     ADDOP_JREL(c, SETUP_ASYNC_WITH, finally);
 
@@ -4239,7 +4237,6 @@ compiler_async_with(struct compiler *c, stmt_ty s, int pos)
             return 0;
 
     /* End of try block; start the finally block */
-    ADDOP_JREL(c, DEFER_PENDING_UNTIL, finally_await);
     ADDOP(c, POP_BLOCK);
     compiler_pop_fblock(c, FINALLY_TRY, block);
 
@@ -4253,10 +4250,8 @@ compiler_async_with(struct compiler *c, stmt_ty s, int pos)
        opcode. */
     ADDOP(c, WITH_CLEANUP_START);
 
-    ADDOP_JREL(c, DEFER_PENDING_UNTIL, finally_await);
     ADDOP(c, GET_AWAITABLE);
     ADDOP_O(c, LOAD_CONST, Py_None, consts);
-    compiler_use_next_block(c, finally_await);
     ADDOP(c, YIELD_FROM);
 
     ADDOP(c, WITH_CLEANUP_FINISH);