Core: Remove two methods from AbstractComponent (elastic#34336)

This removes another two methods from `AbstractComponent`. One isn't
used at all and another is only used in a single class in watcher. I've
moved the method that watcher uses into the single class that uses it.

Author: nik9000

server/src/main/java/org/elasticsearch/common/component/AbstractComponent.java

@@ -21,7 +21,6 @@
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
-import org.elasticsearch.common.Strings;
 import org.elasticsearch.common.logging.DeprecationLogger;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.node.Node;
@@ -44,23 +43,4 @@ public AbstractComponent(Settings settings) {
     public final String nodeName() {
         return Node.NODE_NAME_SETTING.get(settings);
     }
-
-    /**
-     * Checks for a deprecated setting and logs the correct alternative
-     */
-    protected void logDeprecatedSetting(String settingName, String alternativeName) {
-        if (!Strings.isNullOrEmpty(settings.get(settingName))) {
-            deprecationLogger.deprecated("Setting [{}] is deprecated, use [{}] instead", settingName, alternativeName);
-        }
-    }
-
-    /**
-     * Checks for a removed setting and logs the correct alternative
-     */
-    protected void logRemovedSetting(String settingName, String alternativeName) {
-        if (!Strings.isNullOrEmpty(settings.get(settingName))) {
-            deprecationLogger.deprecated("Setting [{}] has been removed, use [{}] instead", settingName, alternativeName);
-        }
-    }
-
 }

server/src/main/java/org/elasticsearch/watcher/ResourceWatcherService.java

@@ -97,12 +97,6 @@ public ResourceWatcherService(Settings settings, ThreadPool threadPool) {
         mediumMonitor = new ResourceMonitor(interval, Frequency.MEDIUM);
         interval = RELOAD_INTERVAL_HIGH.get(settings);
         highMonitor = new ResourceMonitor(interval, Frequency.HIGH);
-
-        logRemovedSetting("watcher.enabled", "resource.reload.enabled");
-        logRemovedSetting("watcher.interval", "resource.reload.interval");
-        logRemovedSetting("watcher.interval.low", "resource.reload.interval.low");
-        logRemovedSetting("watcher.interval.medium", "resource.reload.interval.medium");
-        logRemovedSetting("watcher.interval.high", "resource.reload.interval.high");
     }
 
     @Override