vrend: remove unused function

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Elie Tournier <elie.tournier@collabora.com>

src/vrend_renderer.c

@@ -662,11 +662,6 @@ static inline bool vrend_format_is_ds(enum virgl_formats format)
    return tex_conv_table[format].bindings & VIRGL_BIND_DEPTH_STENCIL;
 }
 
-bool vrend_is_ds_format(enum virgl_formats format)
-{
-   return vrend_format_is_ds(format);
-}
-
 bool vrend_format_is_emulated_alpha(enum virgl_formats format)
 {
    if (vrend_state.use_gles || !vrend_state.use_core_profile)

src/vrend_renderer.h

@@ -423,7 +423,6 @@ void vrend_report_buffer_error(struct vrend_context *ctx, int cmd);
 void vrend_fb_bind_texture(struct vrend_resource *res,
                            int idx,
                            uint32_t level, uint32_t layer);
-bool vrend_is_ds_format(enum virgl_formats format);
 bool vrend_format_is_emulated_alpha(enum virgl_formats format);
 boolean format_is_copy_compatible(enum pipe_format src, enum pipe_format dst,
                                   boolean allow_compressed);