fix: remove unused imports

Author: kgryte

lib/node_modules/@stdlib/random/strided/tools/docs/types/index.d.ts

@@ -20,10 +20,6 @@
 
 /* eslint-disable max-lines */
 
-import binaryFactory = require( '@stdlib/random/strided/tools/binary-factory' );
-import ternaryFactory = require( '@stdlib/random/strided/tools/ternary-factory' );
-import unaryFactory = require( '@stdlib/random/strided/tools/unary-factory' );
-
 /**
 * Interface describing the `tools` namespace.
 */