diff --git a/gdk/gdkvulkancontext.c b/gdk/gdkvulkancontext.c
index a1ce158d96..fe78c8d5a0 100644
--- a/gdk/gdkvulkancontext.c
+++ b/gdk/gdkvulkancontext.c
@@ -74,7 +74,6 @@ struct _GdkVulkanContextPrivate {
     GdkMemoryFormat gdk_format;
   } formats[4];
   GdkMemoryDepth current_depth;
-  GdkMemoryFormat offscreen_formats[4];
 
   VkSwapchainKHR swapchain;
   VkSemaphore draw_semaphore;
@@ -828,11 +827,6 @@ gdk_vulkan_context_real_init (GInitable     *initable,
   if (!priv->vulkan_ref)
     return FALSE;
 
-  priv->offscreen_formats[GDK_MEMORY_U8] = GDK_MEMORY_B8G8R8A8_PREMULTIPLIED;
-  priv->offscreen_formats[GDK_MEMORY_U16] = GDK_MEMORY_R16G16B16A16_PREMULTIPLIED;
-  priv->offscreen_formats[GDK_MEMORY_FLOAT16] = GDK_MEMORY_R16G16B16A16_FLOAT_PREMULTIPLIED;
-  priv->offscreen_formats[GDK_MEMORY_FLOAT32] = GDK_MEMORY_R32G32B32A32_FLOAT_PREMULTIPLIED;
-
   if (surface == NULL)
     {
       for (i = 0; i < G_N_ELEMENTS (priv->formats); i++)
@@ -888,7 +882,6 @@ gdk_vulkan_context_real_init (GInitable     *initable,
                   {
                     priv->formats[GDK_MEMORY_U8].vk_format = formats[i];
                     priv->formats[GDK_MEMORY_U8].gdk_format = GDK_MEMORY_B8G8R8A8_PREMULTIPLIED;
-                    priv->offscreen_formats[GDK_MEMORY_U8] = GDK_MEMORY_B8G8R8A8_PREMULTIPLIED;
                   };
                 break;
 
@@ -965,15 +958,6 @@ out_surface:
   return FALSE;
 }
 
-GdkMemoryFormat
-gdk_vulkan_context_get_offscreen_format (GdkVulkanContext *context,
-                                         GdkMemoryDepth    depth)
-{
-  GdkVulkanContextPrivate *priv = gdk_vulkan_context_get_instance_private (context);
-
-  return priv->offscreen_formats[depth];
-}
-
 static void
 gdk_vulkan_context_initable_init (GInitableIface *iface)
 {
diff --git a/gdk/gdkvulkancontextprivate.h b/gdk/gdkvulkancontextprivate.h
index 9f7ff7cd3e..befde8432a 100644
--- a/gdk/gdkvulkancontextprivate.h
+++ b/gdk/gdkvulkancontextprivate.h
@@ -101,9 +101,6 @@ VkImage                 gdk_vulkan_context_get_image                    (GdkVulk
 uint32_t                gdk_vulkan_context_get_draw_index               (GdkVulkanContext      *context);
 VkSemaphore             gdk_vulkan_context_get_draw_semaphore           (GdkVulkanContext      *context);
 
-GdkMemoryFormat         gdk_vulkan_context_get_offscreen_format         (GdkVulkanContext      *context,
-                                                                         GdkMemoryDepth         depth);
-
 #else /* !GDK_RENDERING_VULKAN */