[webcrypto] Remove support for SHA-224 (CL 1 or 3).

LayoutTests/crypto/digest.html

Index: LayoutTests/crypto/digest.html
diff --git a/LayoutTests/crypto/digest.html b/LayoutTests/crypto/digest.html
index 3b9b015f1e4e2356ed73c6b0ce6527016fd4b050..3160c38658f2c42434e430ffb78ac94ea670b7bc 100644
--- a/LayoutTests/crypto/digest.html
+++ b/LayoutTests/crypto/digest.html
@@ -27,11 +27,6 @@ kDigestTestVectors = [
     output: "da39a3ee5e6b4b0d3255bfef95601890afd80709"
   },
   {
-    algorithm: "SHA-224",
-    input: "",
-    output: "d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f"
-  },
-  {
     algorithm: "SHA-256",
     input: "",
     output: "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
@@ -52,11 +47,6 @@ kDigestTestVectors = [
     output: "5ba93c9db0cff93f52b521d7420e43f6eda2784f"
   },
   {
-    algorithm: "SHA-224",
-    input: "00",
-    output: "fff9292b4201617bdc4d3053fce02734166a683d7d858a7f5f59b073"
-  },
-  {
     algorithm: "SHA-256",
     input: "00",
     output: "6e340b9cffb37a989ca544e6bb780a2c78901d3fb33738768511a30617afa01d"
@@ -77,11 +67,6 @@ kDigestTestVectors = [
     output: "868460d98d09d8bbb93d7b6cdd15cc7fbec676b9"
   },
   {
-    algorithm: "SHA-224",
-    input: "000102030405",
-    output: "7d92e7f1cad1818ed1d13ab41f04ebabfe1fef6bb4cbeebac34c29bc"
-  },
-  {
     algorithm: "SHA-256",
     input: "000102030405",
     output: "17e88db187afd62c16e5debf3e6527cd006bc012bc90b51a810cd80c2d511f43"