wined3d: Get rid of last_device.
diff --git a/dlls/wined3d/context.c b/dlls/wined3d/context.c
index 2e50634..61173fb 100644
--- a/dlls/wined3d/context.c
+++ b/dlls/wined3d/context.c
@@ -29,19 +29,8 @@
 
 #define GLINFO_LOCATION (*gl_info)
 
-/* The last used device.
- *
- * If the application creates multiple devices and switches between them, ActivateContext has to
- * change the opengl context. This flag allows to keep track which device is active
- */
-static IWineD3DDeviceImpl *last_device;
 static DWORD wined3d_context_tls_idx;
 
-void context_set_last_device(IWineD3DDeviceImpl *device)
-{
-    last_device = device;
-}
-
 /* FBO helper functions */
 
 /* GL locking is done by the caller */
@@ -1193,7 +1182,6 @@
     }
     LEAVE_GL();
 
-    context_set_last_device(This);
     This->frag_pipe->enable_extension((IWineD3DDevice *) This, TRUE);
 
     return ret;
@@ -1283,8 +1271,6 @@
         context_destroy_gl_resources(context);
         destroy = TRUE;
 
-        context_set_last_device(NULL);
-
         if (This->activeContext == context)
         {
             This->activeContext = NULL;
@@ -1840,7 +1826,6 @@
         }
     }
     This->activeContext = context;
-    context_set_last_device(This);
 
     switch (usage) {
         case CTXUSAGE_CLEAR:
diff --git a/dlls/wined3d/directx.c b/dlls/wined3d/directx.c
index 9daffaa..e6fb1c7 100644
--- a/dlls/wined3d/directx.c
+++ b/dlls/wined3d/directx.c
@@ -284,7 +284,6 @@
         ERR_(d3d_caps)("Failed to make fake GL context current.\n");
         goto fail;
     }
-    context_set_last_device(NULL);
 
     return TRUE;
 
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 363eb13..a28878e 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -1271,7 +1271,6 @@
         GLenum fbo_target, IWineD3DSurface *depth_stencil, BOOL use_render_buffer);
 void context_attach_surface_fbo(const struct WineD3DContext *context,
         GLenum fbo_target, DWORD idx, IWineD3DSurface *surface);
-void context_set_last_device(IWineD3DDeviceImpl *device);
 struct WineD3DContext *context_get_current(void);
 DWORD context_get_tls_idx(void);
 BOOL context_set_current(struct WineD3DContext *ctx);