diff --git a/libavcodec/libvpx.c b/libavcodec/libvpx.c
index 36f915a8e5..cc055a0032 100644
--- a/libavcodec/libvpx.c
+++ b/libavcodec/libvpx.c
@@ -78,60 +78,3 @@ av_cold void ff_vp9_init_static(AVCodec *codec)
     }
 #endif
 }
-#if 0
-enum AVPixelFormat ff_vpx_imgfmt_to_pixfmt(vpx_img_fmt_t img)
-{
-    switch (img) {
-    case VPX_IMG_FMT_RGB24:     return AV_PIX_FMT_RGB24;
-    case VPX_IMG_FMT_RGB565:    return AV_PIX_FMT_RGB565BE;
-    case VPX_IMG_FMT_RGB555:    return AV_PIX_FMT_RGB555BE;
-    case VPX_IMG_FMT_UYVY:      return AV_PIX_FMT_UYVY422;
-    case VPX_IMG_FMT_YUY2:      return AV_PIX_FMT_YUYV422;
-    case VPX_IMG_FMT_YVYU:      return AV_PIX_FMT_YVYU422;
-    case VPX_IMG_FMT_BGR24:     return AV_PIX_FMT_BGR24;
-    case VPX_IMG_FMT_ARGB:      return AV_PIX_FMT_ARGB;
-    case VPX_IMG_FMT_ARGB_LE:   return AV_PIX_FMT_BGRA;
-    case VPX_IMG_FMT_RGB565_LE: return AV_PIX_FMT_RGB565LE;
-    case VPX_IMG_FMT_RGB555_LE: return AV_PIX_FMT_RGB555LE;
-    case VPX_IMG_FMT_I420:      return AV_PIX_FMT_YUV420P;
-    case VPX_IMG_FMT_I422:      return AV_PIX_FMT_YUV422P;
-    case VPX_IMG_FMT_I444:      return AV_PIX_FMT_YUV444P;
-    case VPX_IMG_FMT_444A:      return AV_PIX_FMT_YUVA444P;
-#if VPX_IMAGE_ABI_VERSION >= 3
-    case VPX_IMG_FMT_I440:      return AV_PIX_FMT_YUV440P;
-    case VPX_IMG_FMT_I42016:    return AV_PIX_FMT_YUV420P16BE;
-    case VPX_IMG_FMT_I42216:    return AV_PIX_FMT_YUV422P16BE;
-    case VPX_IMG_FMT_I44416:    return AV_PIX_FMT_YUV444P16BE;
-#endif
-    default:                    return AV_PIX_FMT_NONE;
-    }
-}
-
-vpx_img_fmt_t ff_vpx_pixfmt_to_imgfmt(enum AVPixelFormat pix)
-{
-    switch (pix) {
-    case AV_PIX_FMT_RGB24:        return VPX_IMG_FMT_RGB24;
-    case AV_PIX_FMT_RGB565BE:     return VPX_IMG_FMT_RGB565;
-    case AV_PIX_FMT_RGB555BE:     return VPX_IMG_FMT_RGB555;
-    case AV_PIX_FMT_UYVY422:      return VPX_IMG_FMT_UYVY;
-    case AV_PIX_FMT_YUYV422:      return VPX_IMG_FMT_YUY2;
-    case AV_PIX_FMT_YVYU422:      return VPX_IMG_FMT_YVYU;
-    case AV_PIX_FMT_BGR24:        return VPX_IMG_FMT_BGR24;
-    case AV_PIX_FMT_ARGB:         return VPX_IMG_FMT_ARGB;
-    case AV_PIX_FMT_BGRA:         return VPX_IMG_FMT_ARGB_LE;
-    case AV_PIX_FMT_RGB565LE:     return VPX_IMG_FMT_RGB565_LE;
-    case AV_PIX_FMT_RGB555LE:     return VPX_IMG_FMT_RGB555_LE;
-    case AV_PIX_FMT_YUV420P:      return VPX_IMG_FMT_I420;
-    case AV_PIX_FMT_YUV422P:      return VPX_IMG_FMT_I422;
-    case AV_PIX_FMT_YUV444P:      return VPX_IMG_FMT_I444;
-    case AV_PIX_FMT_YUVA444P:     return VPX_IMG_FMT_444A;
-#if VPX_IMAGE_ABI_VERSION >= 3
-    case AV_PIX_FMT_YUV440P:      return VPX_IMG_FMT_I440;
-    case AV_PIX_FMT_YUV420P16BE:  return VPX_IMG_FMT_I42016;
-    case AV_PIX_FMT_YUV422P16BE:  return VPX_IMG_FMT_I42216;
-    case AV_PIX_FMT_YUV444P16BE:  return VPX_IMG_FMT_I44416;
-#endif
-    default:                      return VPX_IMG_FMT_NONE;
-    }
-}
-#endif