fix : removing multiple variable declaration

Signed-off-by: Vinit Pandit <[email protected]>

Author: Vinit-Pandit

lib/node_modules/@stdlib/stats/base/svariancewd/examples/index.js

@@ -21,7 +21,6 @@
 var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
 var svariancewd = require( './../lib' );
 
-var x;
 
 var x = discreteUniform( 10, -50, 50, {
 	'dtype': 'float32'