update baselines

Author: Kanchalai Tanglertsampan

tests/baselines/reference/computedPropertyNames49_ES5.js

@@ -60,7 +60,6 @@ var x = (_a = {
         enumerable: true,
         configurable: true
     }),
-    ,
     _a.p2 = 20,
     _a
 );

tests/baselines/reference/computedPropertyNames50_ES5.js

@@ -56,7 +56,6 @@ var x = (_a = {
         enumerable: true,
         configurable: true
     }),
-    ,
     _a.p2 = 20,
     _a
 );