docs: fix return annotations and remove extra return variable

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---

Author: Planeshifter

lib/node_modules/@stdlib/blas/ext/base/wasm/dapx/examples/index.js

@@ -33,11 +33,11 @@ function main() {
 	var x = oneTo( N, 'float64' );
 
 	// Perform computation:
-	var out = dapx.ndarray( N, 5.0, x, 1, 0 );
+	dapx.ndarray( N, 5.0, x, 1, 0 );
 
 	// Print the results:
-	console.log( out );
-	// => <Float64Array>[ 6.0, 7.0, 8.0, 9.0, 10.0 ]
+	console.log( x );
+	// => <Float64Array>[ 6.0, 7.0, 8.0 ]
 }
 
 main();

lib/node_modules/@stdlib/blas/ext/base/wasm/dapx/examples/module.js

@@ -62,7 +62,7 @@ function main() {
 	mod.read( xptr, view );
 
 	console.log( view );
-	// => <Float64Array>[ 6.0, 7.0, 8.0, 9.0, 10.0 ]
+	// => <Float64Array>[ 6.0, 7.0, 8.0 ]
 }
 
 main();