Fix non-noise cpplint errors in //crypto.

crypto/nss_crypto_module_delegate.h

Index: crypto/nss_crypto_module_delegate.h
diff --git a/crypto/nss_crypto_module_delegate.h b/crypto/nss_crypto_module_delegate.h
index 6c1da68161dd5a085d0c82f557a05e3b53d15415..cf08f2859ffb547696638b1508d899290652f9ba 100644
--- a/crypto/nss_crypto_module_delegate.h
+++ b/crypto/nss_crypto_module_delegate.h
@@ -35,7 +35,6 @@ class CryptoModuleBlockingPasswordDelegate {
   // user entered.
   virtual std::string RequestPassword(const std::string& slot_name, bool retry,
                                       bool* cancelled) = 0;
-
 };
 
 // Extends CryptoModuleBlockingPasswordDelegate with the ability to return a