core: Fix comment on size limits

We introduced size limits in 2c820c5ad455 ("core: Limit maximum size of
an assembled MCTP message").

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Change-Id: I9553027ddba65c344d29b4f7fd7817d6ff93f454
diff --git a/core.c b/core.c
index 0be8c69..02d86cd 100644
--- a/core.c
+++ b/core.c
@@ -212,7 +212,7 @@
 		size_t new_alloc_size;
 		void *lbuf;
 
-		/* @todo: finer-grained allocation, size limits */
+		/* @todo: finer-grained allocation */
 		if (!ctx->buf_alloc_size) {
 			new_alloc_size = 4096;
 		} else {