Docs: Remove outdated annotate_transform example, link to annotation tutorial (matplotlib#30916)

* Docs: Remove outdated annotate_transform example, link to annotation tutorial instead

* Docs: remove annotate_transform example and redirect to annotations tutorial

* DOC: Add redirect for removed annotate_transform example

---------

Co-authored-by: ee25b003 <ee25b003@smail.iitm.ac.in>

Author: codingabhiroop

galleries/examples/text_labels_and_annotations/annotate_transform.py

@@ -12,6 +12,7 @@
 .. redirect-from:: /gallery/userdemo/connect_simple01
 .. redirect-from:: /gallery/userdemo/connectionstyle_demo
 .. redirect-from:: /tutorials/text/annotations
+.. redirect-from:: /gallery/text_labels_and_annotations/annotate_transform
 
 .. _annotations: