[gegl] docs: remove incorrect arg for gegl-tester

[Øyvind "pippin" Kolås <ok src gnome org>]

commit a68ca76b58447967fdafdb75429e9b0b287ab059
Author: John <jtm home gmail com>
Date:   Thu Mar 11 19:46:48 2021 +0000

    docs: remove incorrect arg for gegl-tester

 docs/website/operations/images/meson.build | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/docs/website/operations/images/meson.build b/docs/website/operations/images/meson.build
index 31323cf00..dbab5f3a1 100644
--- a/docs/website/operations/images/meson.build
+++ b/docs/website/operations/images/meson.build
@@ -76,7 +76,6 @@ exclude += [
 
 doc_ops_img_cmd = [
   gegl_tester,
-  '--gegl-swap=@0@RAM'.format(project_build_root),
   '--data-directory', project_source_root / 'docs' / 'images',
   '--output-directory', '@OUTDIR@',
   '--all',