Remove tempel-collection, enable tempel-abbrev-mode

config/completion.org

@@ -179,14 +179,6 @@
 
     ;; Optionally make the Tempel templates available to Abbrev,
     ;; either locally or globally. `expand-abbrev' is bound to C-x '.
-    ;; (add-hook 'prog-mode-hook #'tempel-abbrev-mode)
-    ;; (global-tempel-abbrev-mode)
-    )
-
-  ;; Optional: Add tempel-collection.
-  ;; The package is young and doesn't have comprehensive coverage.
-  (use-package tempel-collection
-    :ensure t
-    :diminish
-    :after tempel)
+    (add-hook 'prog-mode-hook #'tempel-abbrev-mode)
+    (global-tempel-abbrev-mode))
 #+end_src