[libsoup/wip/doc-test] ci: Avoid installing docs

[Patrick Griffis <pgriffis src gnome org>]

commit 3c174a7792ed22ce8844c48e8e75c06ec5a23b32
Author: Patrick Griffis <pgriffis igalia com>
Date:   Sun Sep 20 13:27:15 2020 -0700

    ci: Avoid installing docs

 .gitlab-ci.yml | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1e09c998..9ca30a16 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -49,13 +49,10 @@ coverage:
 
 reference:
   stage: docs
-  variables:
-    DESTDIR: _install
   needs: []
   script:
     - meson _build -Dgtk_doc=true
-    # FIXME: ninja -C _build libsoup-3.0-doc fails
-    - ninja -C _build install
+    - ninja -C _build libsoup-3.0-doc
     - mv _build/docs/reference/html/ _reference/
   artifacts:
     paths: