aom: Remove stale comment in av1_lookahead_push()

From 461d7a5ddda3afbcf25aad3f1738ea54d3ee29a1 Mon Sep 17 00:00:00 2001
From: Wan-Teh Chang <[EMAIL REDACTED]>
Date: Fri, 2 Feb 2024 10:18:43 -0800
Subject: [PATCH] Remove stale comment in av1_lookahead_push()

The comment "Partial copy not implemented yet" in av1_lookahead_push()
was copied from vp9_lookahead_push() in libvpx. It refers to the partial
copy code in vp8_lookahead_push() that copies only the active regions
using vp8_copy_and_extend_frame_with_rect() based on the active_map.
This comment doesn't make sense unless one knows about this history.

Ref: https://chromium-review.googlesource.com/c/webm/libvpx/+/5254217
Change-Id: I66dabcf1d6692eb1181ec6ebc1fce198a1fc6691
---
 av1/encoder/lookahead.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/av1/encoder/lookahead.c b/av1/encoder/lookahead.c
index ed86a3d5e..d91de5497 100644
--- a/av1/encoder/lookahead.c
+++ b/av1/encoder/lookahead.c
@@ -150,7 +150,6 @@ int av1_lookahead_push(struct lookahead_ctx *ctx, const YV12_BUFFER_CONFIG *src,
     buf->img.subsampling_x = src->subsampling_x;
     buf->img.subsampling_y = src->subsampling_y;
   }
-  // Partial copy not implemented yet
   av1_copy_and_extend_frame(src, &buf->img);
 
   buf->ts_start = ts_start;