Remove --use-allocation-folding relict from tests.

Change-Id: Ia4d4211dbc8f0714dd11983ac7bc899f51ba69c5
Reviewed-on: https://chromium-review.googlesource.com/1051237Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53090}

test/mjsunit/fast-literal.js

@@ -25,7 +25,7 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --allow-natives-syntax --no-inline-new --nouse-allocation-folding
+// Flags: --allow-natives-syntax --no-inline-new
 
 %SetAllocationTimeout(20, 0);
 function f() {

test/mjsunit/regress/regress-484544.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: --nouse-allocation-folding  --stress-compaction --predictable
+// Flags: --stress-compaction --predictable
 
 function f() {
   return [[], [], [[], [], []]];

test/mjsunit/regress/regress-crbug-347903.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: --allow-natives-syntax --use-allocation-folding --verify-heap
+// Flags: --allow-natives-syntax --verify-heap
 
 function f() {
   var a = new Array(84632);