HADOOP-16223. Remove misleading fs.s3a.delegation.tokens.enabled prompt (#3879)

Contributed by Ahmar Suhail

hadoop-common-project/hadoop-common/src/main/resources/core-default.xml

@@ -1358,12 +1358,6 @@
   </description>
 </property>
 
-<property>
-  <name>fs.s3a.delegation.tokens.enabled</name>
-  <value>false</value>
-  <description></description>
-</property>
-
 <property>
   <name>fs.s3a.delegation.token.binding</name>
   <value></value>