winex11: Remove set-but-never-read hwnd and fbconfig_id fields of struct…

dlls/winex11.drv/opengl.c

@@ -2323,11 +2323,9 @@ static HDC X11DRV_wglGetPbufferDCARB( struct wgl_pbuffer *object )
     LeaveCriticalSection( &context_section );
 
     escape.code = X11DRV_SET_DRAWABLE;
-    escape.hwnd = 0;
     escape.drawable = object->drawable;
     escape.mode = IncludeInferiors;
     SetRect( &escape.dc_rect, 0, 0, object->width, object->height );
-    escape.fbconfig_id = object->fmt->fmt_id;
     ExtEscape( hdc, X11DRV_ESCAPE, sizeof(escape), (LPSTR)&escape, 0, NULL );
 
     TRACE( "(%p)->(%p)\n", object, hdc );

dlls/winex11.drv/window.c

@@ -1971,9 +1971,7 @@ void CDECL X11DRV_GetDC( HDC hdc, HWND hwnd, HWND top, const RECT *win_rect,
     HWND parent;
 
     escape.code = X11DRV_SET_DRAWABLE;
-    escape.hwnd        = hwnd;
     escape.mode = IncludeInferiors;
-    escape.fbconfig_id = 0;
 
     escape.dc_rect.left         = win_rect->left - top_rect->left;
     escape.dc_rect.top          = win_rect->top - top_rect->top;
@@ -2019,12 +2017,10 @@ void CDECL X11DRV_ReleaseDC( HWND hwnd, HDC hdc )
     struct x11drv_escape_set_drawable escape;
 
     escape.code = X11DRV_SET_DRAWABLE;
-    escape.hwnd = GetDesktopWindow();
     escape.drawable = root_window;
     escape.mode = IncludeInferiors;
     escape.dc_rect = get_virtual_screen_rect();
     OffsetRect( &escape.dc_rect, -2 * escape.dc_rect.left, -2 * escape.dc_rect.top );
-    escape.fbconfig_id = 0;
     ExtEscape( hdc, X11DRV_ESCAPE, sizeof(escape), (LPSTR)&escape, 0, NULL );
 }
 

dlls/winex11.drv/x11drv.h

@@ -283,11 +283,9 @@ enum x11drv_escape_codes
 struct x11drv_escape_set_drawable
 {
     enum x11drv_escape_codes code;         /* escape code (X11DRV_SET_DRAWABLE) */
-    HWND                     hwnd;         /* window for this drawable */
     Drawable                 drawable;     /* X drawable */
     int                      mode;         /* ClipByChildren or IncludeInferiors */
     RECT                     dc_rect;      /* DC rectangle relative to drawable */
-    XID                      fbconfig_id;  /* fbconfig id used by the GL drawable */
 };
 
 struct x11drv_escape_get_drawable