Merge pull request matplotlib#31830 from meeseeksmachine/auto-backport-of-pr-31829-on-v3.11.x

Backport PR matplotlib#31829 on branch v3.11.x (DOC: Fix gallery order)

Author: timhoffm

doc/sphinxext/gallery_order.py

@@ -134,8 +134,6 @@ def read_gallery_order(src_dir: Path):
 
         non_existing_examples = listed_examples - existing_examples
         missing_examples = existing_examples - listed_examples
-        print(f"non_existing_examples: {non_existing_examples}")
-        print(f"missing_examples: {missing_examples}")
 
         if non_existing_examples:
             raise ValueError(

galleries/examples/spines/gallery_order.txt

@@ -2,5 +2,4 @@
 spines
 spine_placement_demo
 spines_dropped
-multiple_yaxis_with_spines
 centered_spines_with_arrows