Update test_binaryen_metadce

tests/test_other.py

@@ -7881,7 +7881,7 @@ def test(filename, expectations, size_slack):
                    0, [],        [],           8,   0,    0,  0), # noqa; totally empty!
         # we don't metadce with linkable code! other modules may want stuff
         (['-O3', '-s', 'MAIN_MODULE=1'],
-                1566, [],        [],      226057,  28,   75, None), # noqa; don't compare the # of functions in a main module, which changes a lot
+                1556, [],        [],      226057,  28,   75, None), # noqa; don't compare the # of functions in a main module, which changes a lot
       ], size_slack) # noqa
 
       print('test on a minimal pure computational thing')