refactor: remove positive zero test for package consistency

Author: LoayAhmed304

lib/node_modules/@stdlib/stats/base/ndarray/dmeanlipw/test/test.native.js

@@ -23,7 +23,6 @@
 var resolve = require( 'path' ).resolve;
 var tape = require( 'tape' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
-var isPositiveZero = require( '@stdlib/math/base/assert/is-positive-zero' );
 var Float64Array = require( '@stdlib/array/float64' );
 var ndarray = require( '@stdlib/ndarray/base/ctor' );
 var tryRequire = require( '@stdlib/utils/try-require' );
@@ -79,10 +78,6 @@ tape( 'the function calculates the arithmetic mean of a one-dimensional ndarray'
 	v = dmeanlipw( [ vector( x, 2, 1, 0 ) ] );
 	t.strictEqual( v, -4.5, 'returns expected value' );
 
-	x = new Float64Array( [ -0.0, 0.0, -0.0 ] );
-	v = dmeanlipw( [ vector( x, 3, 1, 0 ) ] );
-	t.strictEqual( isPositiveZero( v ), true, 'returns expected value' );
-
 	x = new Float64Array( [ NaN ] );
 	v = dmeanlipw( [ vector( x, 1, 1, 0 ) ] );
 	t.strictEqual( isnan( v ), true, 'returns expected value' );