[wasm][test] Remove default --wasm-async-compilation flag

The flag is on by default, so we don't need to specify it. More
importantly, the tests are expected to work for any value of that flag.
So don't force the flag but use whatever the test variant chooses.

Note that in streaming-compile.js, the flag was accidentally specified
as '-async-compilation'. I also removed that one.

R=ahaas@chromium.org

Change-Id: Ifad31160d266dda38cdd9dd1d73dad69bd2c2f2c
Reviewed-on: https://chromium-review.googlesource.com/c/1325961Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57406}

test/mjsunit/regress/regress-813440.js

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --invoke-weak-callbacks --omit-quit --wasm-async-compilation --expose-wasm --allow-natives-syntax
+// Flags: --invoke-weak-callbacks --omit-quit --expose-wasm --allow-natives-syntax
 
 load("test/mjsunit/wasm/wasm-constants.js");
 load("test/mjsunit/wasm/wasm-module-builder.js");

test/mjsunit/regress/wasm/regress-734108.js

@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --wasm-async-compilation
-
 __v_0 = new Uint8Array([
   0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x01, 0x05, 0x01,
   0x60, 0x00, 0x01, 0x7f, 0x03, 0x02, 0x01, 0x00, 0x05, 0x03, 0x01,

test/mjsunit/wasm/async-compile.js

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --wasm-async-compilation --expose-wasm --allow-natives-syntax
+// Flags: --expose-wasm --allow-natives-syntax
 
 load("test/mjsunit/wasm/wasm-constants.js");
 load("test/mjsunit/wasm/wasm-module-builder.js");

test/mjsunit/wasm/graceful_shutdown.js

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --expose-wasm --wasm-async-compilation --no-wait-for-wasm
+// Flags: --expose-wasm --no-wait-for-wasm
 
 load("test/mjsunit/wasm/wasm-constants.js");
 load("test/mjsunit/wasm/wasm-module-builder.js");

test/mjsunit/wasm/liftoff.js

@@ -2,8 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --allow-natives-syntax --liftoff --wasm-async-compilation
-// Flags: --no-future --no-wasm-tier-up
+// Flags: --allow-natives-syntax --liftoff --no-future --no-wasm-tier-up
 
 load('test/mjsunit/wasm/wasm-constants.js');
 load('test/mjsunit/wasm/wasm-module-builder.js');

test/mjsunit/wasm/streaming-compile.js

@@ -2,6 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --wasm-test-streaming -async-compilation --expose-wasm --allow-natives-syntax
+// Flags: --wasm-test-streaming --expose-wasm --allow-natives-syntax
 
 load("test/mjsunit/wasm/async-compile.js");

test/mjsunit/wasm/streaming-error-position.js

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --wasm-test-streaming --wasm-async-compilation --expose-wasm --allow-natives-syntax
+// Flags: --wasm-test-streaming --expose-wasm --allow-natives-syntax
 
 'use strict';
 

test/mjsunit/wasm/streaming-trap-location.js

@@ -2,6 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --wasm-test-streaming --wasm-async-compilation --expose-wasm
+// Flags: --wasm-test-streaming --expose-wasm
 
 load("test/mjsunit/wasm/trap-location.js");