Revert of Check that usage isn't empty when generateKey() is called

content/child/webcrypto/test/aes_kw_unittest.cc

Index: content/child/webcrypto/test/aes_kw_unittest.cc
diff --git a/content/child/webcrypto/test/aes_kw_unittest.cc b/content/child/webcrypto/test/aes_kw_unittest.cc
index 5beaae6ff032d63797212d667a592279a0e2e77e..5b073d964a0da3c3ab8b4b8b809cc49b703c2a9b 100644
--- a/content/child/webcrypto/test/aes_kw_unittest.cc
+++ b/content/child/webcrypto/test/aes_kw_unittest.cc
@@ -32,12 +32,6 @@
               GenerateSecretKey(
                   CreateAesKwKeyGenAlgorithm(kKeyLen[i]), true, 0, &key));
   }
-}
-
-TEST(WebCryptoAesKwTest, GenerateKeyEmptyUsage) {
-  blink::WebCryptoKey key;
-  EXPECT_EQ(Status::ErrorCreateKeyEmptyUsages(),
-            GenerateSecretKey(CreateAesKwKeyGenAlgorithm(256), true, 0, &key));
 }
 
 TEST(WebCryptoAesKwTest, ImportKeyJwkKeyOpsWrapUnwrap) {