fix(utils): fix warning thrown by Webpack (#2843)

Fixes a warning thrown by Webpack for using "require" without importing
anything. Warning reads "require function is used in a way in which
dependencies cannot be statically extracted"

Closes issue #2840

lib/core/utils/uuid.js

@@ -24,10 +24,10 @@ if (!_rng && _crypto && _crypto.getRandomValues) {
 }
 
 try {
-	if (!_rng && require) {
-		const nodeCrypto = require('crypto');
-		_rng = () => nodeCrypto.randomBytes(16);
-	}
+  if (!_rng) {
+    const nodeCrypto = require('crypto');
+    _rng = () => nodeCrypto.randomBytes(16);
+  }
 } catch (e) {
 	/* do nothing */
 }