Backport PR #37496: DOC: release date for 1.1.4 (#37500)

Co-authored-by: Simon Hawkins <[email protected]>

Author: meeseeksmachine

doc/source/whatsnew/v1.1.4.rst

@@ -1,7 +1,7 @@
 .. _whatsnew_114:
 
-What's new in 1.1.4 (??)
-------------------------
+What's new in 1.1.4 (October 30, 2020)
+--------------------------------------
 
 These are the changes in pandas 1.1.4. See :ref:`release` for a full changelog
 including other versions of pandas.
@@ -46,14 +46,6 @@ Bug fixes
 
 .. ---------------------------------------------------------------------------
 
-.. _whatsnew_114.other:
-
-Other
-~~~~~
--
-
-.. ---------------------------------------------------------------------------
-
 .. _whatsnew_114.contributors:
 
 Contributors