DOCSP-33225 removing fcv section (#5201) (#5299)

Author: ltran-mdb2

source/core/replica-set-arbiter.txt

@@ -73,15 +73,10 @@ Replica Set Protocol Version and Arbiter
 
 For more information, see the :dbcommand:`setFeatureCompatibilityVersion` command.
 
-Feature Compatibility Version
------------------------------
-
-.. include:: /includes/arbiter-fcv.rst
-
 .. _rollbacks-multi-arbiters:
 
-Don't Deploy Multiple Arbiters
-------------------------------
+Concerns with Multiple Arbiters
+-------------------------------
 
 Use a single arbiter to avoid problems with data consistency. Multiple
 arbiters prevent the reliable use of the majority