wined3d: Get rid of the unused "streams" field from struct wined3d_vertex_declaration.

dlls/wined3d/vertexdeclaration.c

@@ -164,7 +164,6 @@ static HRESULT vertexdeclaration_init(struct wined3d_vertex_declaration *declara
         void *parent, const struct wined3d_parent_ops *parent_ops)
 {
     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
-    WORD preloaded = 0; /* MAX_STREAMS, 16 */
     unsigned int i;
 
     if (TRACE_ON(d3d_decl))
@@ -224,13 +223,6 @@ static HRESULT vertexdeclaration_init(struct wined3d_vertex_declaration *declara
             return E_FAIL;
         }
 
-        if (!(preloaded & (1 << e->input_slot)))
-        {
-            declaration->streams[declaration->num_streams] = e->input_slot;
-            ++declaration->num_streams;
-            preloaded |= 1 << e->input_slot;
-        }
-
         if (elements[i].format == WINED3DFMT_R16G16_FLOAT || elements[i].format == WINED3DFMT_R16G16B16A16_FLOAT)
         {
             if (!gl_info->supported[ARB_HALF_FLOAT_VERTEX]) declaration->half_float_conv_needed = TRUE;

dlls/wined3d/wined3d_private.h

@@ -2239,10 +2239,8 @@ struct wined3d_vertex_declaration
     struct wined3d_vertex_declaration_element *elements;
     UINT element_count;
 
-    DWORD                   streams[MAX_STREAMS];
-    UINT                    num_streams;
-    BOOL                    position_transformed;
-    BOOL                    half_float_conv_needed;
+    BOOL position_transformed;
+    BOOL half_float_conv_needed;
 };
 
 struct wined3d_saved_states