diff --git a/include/vulkan/vulkan.h b/include/vulkan/vulkan.h
index bb6bdf9d566..e3c29b55b10 100644
--- a/include/vulkan/vulkan.h
+++ b/include/vulkan/vulkan.h
@@ -1235,12 +1235,6 @@ typedef struct {
     VkMemoryPropertyFlags                       memProps;
 } VkMemoryAllocInfo;
 
-typedef struct {
-    VkStructureType                             sType;
-    const void*                                 pNext;
-    VkDeviceMemory                              sharedMem;
-} VkMemoryOpenInfo;
-
 typedef struct {
     VkDeviceSize                                size;
     VkDeviceSize                                alignment;
@@ -1286,12 +1280,6 @@ typedef struct {
     VkSemaphoreCreateFlags                      flags;
 } VkSemaphoreCreateInfo;
 
-typedef struct {
-    VkStructureType                             sType;
-    const void*                                 pNext;
-    VkSemaphore                                 sharedSemaphore;
-} VkSemaphoreOpenInfo;
-
 typedef struct {
     VkStructureType                             sType;
     const void*                                 pNext;
@@ -1338,10 +1326,6 @@ typedef struct {
     VkImageCreateFlags                          flags;
 } VkImageCreateInfo;
 
-typedef struct {
-    VkImage                                     originalImage;
-} VkPeerImageOpenInfo;
-
 typedef struct {
     VkDeviceSize                                offset;
     VkDeviceSize                                size;