Remove AES-GCM cipher indices.

Those ciphers go through EVP_AEAD now.

Change-Id: Ia97af9960223724f041dc2c249def9e626fd03f8
Reviewed-on: https://boringssl-review.googlesource.com/1520
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/include/openssl/aead.h b/include/openssl/aead.h
index eb2194a..7e4682c 100644
--- a/include/openssl/aead.h
+++ b/include/openssl/aead.h
@@ -92,10 +92,10 @@
 
 /* AEAD algorithms. */
 
-/* EVP_aes_128_gcm is AES-128 in Galois Counter Mode. */
+/* EVP_aead_aes_128_gcm is AES-128 in Galois Counter Mode. */
 OPENSSL_EXPORT const EVP_AEAD *EVP_aead_aes_128_gcm(void);
 
-/* EVP_aes_256_gcm is AES-256 in Galois Counter Mode. */
+/* EVP_aead_aes_256_gcm is AES-256 in Galois Counter Mode. */
 OPENSSL_EXPORT const EVP_AEAD *EVP_aead_aes_256_gcm(void);
 
 /* EVP_aead_chacha20_poly1305 is an AEAD built from ChaCha20 and Poly1305. */