Remove support for the keygen tag

net/android/network_library.h

Index: net/android/network_library.h
diff --git a/net/android/network_library.h b/net/android/network_library.h
index 548d43a1f2524457cbd3600639e52a5a4225cc72..2c7bef2fad783cc21e07f7294d9609d3a6e2d2de 100644
--- a/net/android/network_library.h
+++ b/net/android/network_library.h
@@ -36,15 +36,6 @@ void AddTestRootCertificate(const uint8_t* cert, size_t len);
 // Removes all root certificates added by |AddTestRootCertificate| calls.
 void ClearTestRootCertificates();
 
-// Helper for the <keygen> handler. Passes the DER-encoded key pair via JNI to
-// the Credentials store. The public key should be a DER-encoded
-// SubjectPublicKeyInfo (X.509) and the private key a DER-encode PrivateKeyInfo
-// (PKCS#8).
-bool StoreKeyPair(const uint8_t* public_key,
-                  size_t public_len,
-                  const uint8_t* private_key,
-                  size_t private_len);
-
 // Returns true if it can determine that only loopback addresses are configured.
 // i.e. if only 127.0.0.1 and ::1 are routable.
 // Also returns false if it cannot determine this.