Fixes apache#3874

- Removed JmxRuntimeInputArgumentsLookup class
- Updated the changelog entry to src/changelog/.2.x.x/3874_remove_jvmrunargs_lookup.xml

Author: ramanathan1504

log4j-core/src/main/java/org/apache/logging/log4j/core/lookup/Interpolator.java

@@ -53,7 +53,6 @@ public class Interpolator extends AbstractConfigurationAwareLookup implements Lo
 
     private static final String LOOKUP_KEY_JNDI = "jndi";
 
-
     private static final Logger LOGGER = StatusLogger.getLogger();
 
     private final Map<String, StrLookup> strLookupMap = new HashMap<>();

log4j-core/src/main/java/org/apache/logging/log4j/core/lookup/JmxRuntimeInputArgumentsLookup.java

@@ -5,8 +5,9 @@
            https://logging.apache.org/xml/ns
            https://logging.apache.org/xml/ns/log4j-changelog-0.xsd"
        type="removed">
-    <issue id="3874" link="https://github.com/apache/logging-log4j2/issues/3874"/>
+        <issue id="3874" link="https://github.com/apache/logging-log4j2/pull/3874"/>  
+
     <description format="asciidoc">
-      Removed the `jvmrunargs` lookup and related code due to lack of clear use case and potential for confusion.
+      Remove the `jvmrunargs` lookup.
     </description>
 </entry>