fscrypt: remove error messages for skcipher_request_alloc() failure

skcipher_request_alloc() can only fail due to lack of memory, and in
that case the memory allocator will have already printed a detailed
error message.  Thus, remove the redundant error messages from fscrypt.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c
index a00efa2..021f348 100644
--- a/fs/crypto/crypto.c
+++ b/fs/crypto/crypto.c
@@ -162,12 +162,8 @@
 	}
 
 	req = skcipher_request_alloc(tfm, gfp_flags);
-	if (!req) {
-		printk_ratelimited(KERN_ERR
-				"%s: crypto_request_alloc() failed\n",
-				__func__);
+	if (!req)
 		return -ENOMEM;
-	}
 
 	skcipher_request_set_callback(
 		req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,