fix: remove assertion

Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/blas/ext/base/gvander/lib/ndarray.js

@@ -43,7 +43,6 @@ var base = require( './base.js' );
 * @param {NonNegativeInteger} offsetOut - starting index for `out`
 * @throws {RangeError} second argument must be a nonnegative integer
 * @throws {RangeError} third argument must be a nonnegative integer
-* @throws {RangeError} fifth argument must be non-zero
 * @returns {NumericArray} output matrix
 *
 * @example
@@ -60,9 +59,6 @@ function gvander( mode, M, N, x, strideX, offsetX, out, strideOut1, strideOut2,
 	if ( N < 0 ) {
 		throw new RangeError( format( 'invalid argument. Third argument must be a nonnegative integer. Value: `%d`.', N ) );
 	}
-	if ( strideX === 0 ) {
-		throw new RangeError( format( 'invalid argument. Fifth argument must be non-zero. Value: `%d`.', strideX ) );
-	}
 	if ( M === 0 || N === 0 ) {
 		return out;
 	}