DOCSP-44302 removing 1.1.x

(cherry picked from commit 77d6b67)

Author: ltran-mdb2

source/whats-new.txt

@@ -21,8 +21,6 @@ Learn what's new by version:
 
 * :ref:`Version 1.13 <kafka-connector-whats-new-1.13>`
 * :ref:`Version 1.12 <kafka-connector-whats-new-1.12>`
-* :ref:`Version 1.11.2 <kafka-connector-whats-new-1.11.2>`
-* :ref:`Version 1.11.1 <kafka-connector-whats-new-1.11.1>`
 
 .. _kafka-connector-whats-new-1.13: