fix: remove redundant allocations and unused imports in pmf benchmark

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Author: Planeshifter

lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/benchmark/benchmark.native.js

@@ -22,7 +22,6 @@
 
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
-var Float64Array = require( '@stdlib/array/float64' );
 var uniform = require( '@stdlib/random/array/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var tryRequire = require( '@stdlib/utils/try-require' );
@@ -48,9 +47,6 @@ bench( pkg+'::native', opts, function benchmark( b ) {
 	var i;
 
 	len = 100;
-	x = new Float64Array( len );
-	min = new Float64Array( len );
-	max = new Float64Array( len );
 	x = uniform( len, -10.0, 10.0 );
 	min = uniform( len, -10.0, 0.0 );
 	max = uniform( len, 0.0, 10.0 );