Remove unused import in test.js

Removed unused import for isNegativeZerof.

Signed-off-by: Sachin Pangal <151670745+Sachinn-64@users.noreply.github.com>

Author: Sachinn-64

lib/node_modules/@stdlib/stats/base/ndarray/snanmskminabs/test/test.js

@@ -24,7 +24,6 @@ var tape = require( 'tape' );
 var Float32Array = require( '@stdlib/array/float32' );
 var Uint8Array = require( '@stdlib/array/uint8' );
 var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
-var isNegativeZerof = require( '@stdlib/math/base/assert/is-negative-zerof' );
 var ndarray = require( '@stdlib/ndarray/base/ctor' );
 var snanmskminabs = require( './../lib' );