video: don't define IMGFMT_VULKAN conditionally

We generally try to avoid that due to the #ifdef mess.
The equivalent format is defined in ffmpeg 4.4 while our interop code
requires a higher version, but that doesn't cause any problems.

filters/f_auto_filters.c

@@ -85,12 +85,10 @@ static void deint_process(struct mp_filter *f)
         char *args[] = {"mode", "send_field", NULL};
         p->sub.filter =
             mp_create_user_filter(f, MP_OUTPUT_CHAIN_VIDEO, "bwdif_cuda", args);
-#if HAVE_VULKAN_INTEROP
     } else if (img->imgfmt == IMGFMT_VULKAN) {
         char *args[] = {"mode", "send_field", NULL};
         p->sub.filter =
             mp_create_user_filter(f, MP_OUTPUT_CHAIN_VIDEO, "bwdif_vulkan", args);
-#endif
     } else if (img->imgfmt == IMGFMT_VAAPI) {
         char *args[] = {"deint", "motion-adaptive",
                         "interlaced-only", "yes", NULL};

filters/f_hwtransfer.c

@@ -56,12 +56,10 @@ struct hwmap_pairs {
 // We cannot discover which pairs of hardware formats need to use hwmap to
 // convert between the formats, so we need a lookup table.
 static const struct hwmap_pairs hwmap_pairs[] = {
-#if HAVE_VULKAN_INTEROP
     {
         .first_fmt = IMGFMT_VAAPI,
         .second_fmt = IMGFMT_VULKAN,
     },
-#endif
     {
         .first_fmt = IMGFMT_DRMPRIME,
         .second_fmt = IMGFMT_VAAPI,

video/fmt-conversion.c

@@ -66,9 +66,7 @@ static const struct {
     {IMGFMT_CUDA, AV_PIX_FMT_CUDA},
     {IMGFMT_P010, AV_PIX_FMT_P010},
     {IMGFMT_DRMPRIME, AV_PIX_FMT_DRM_PRIME},
-#if HAVE_VULKAN_INTEROP
     {IMGFMT_VULKAN, AV_PIX_FMT_VULKAN},
-#endif
 
     {0, AV_PIX_FMT_NONE}
 };

video/img_format.h

@@ -313,9 +313,7 @@ enum mp_imgfmt {
     IMGFMT_VDPAU_OUTPUT,    // VdpOutputSurface
     IMGFMT_VAAPI,
     IMGFMT_VIDEOTOOLBOX,    // CVPixelBufferRef
-#if HAVE_VULKAN_INTEROP
     IMGFMT_VULKAN,          // VKImage
-#endif
     IMGFMT_DRMPRIME,        // AVDRMFrameDescriptor
 
     // Generic pass-through of AV_PIX_FMT_*. Used for formats which don't have