Remove unused method from AutoCreateIndex (#124176)

The method

    AutoCreateIndex.shouldAutoCreate(String, ClusterState)

is deprecated and not used. This commit removes it.

Author: tvernum

server/src/main/java/org/elasticsearch/action/support/AutoCreateIndex.java

@@ -9,7 +9,6 @@
 
 package org.elasticsearch.action.support;
 
-import org.elasticsearch.cluster.ClusterState;
 import org.elasticsearch.cluster.metadata.ComposableIndexTemplate;
 import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
 import org.elasticsearch.cluster.metadata.MetadataIndexTemplateService;
@@ -21,7 +20,6 @@
 import org.elasticsearch.common.settings.Setting.Property;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.core.Booleans;
-import org.elasticsearch.core.FixForMultiProject;
 import org.elasticsearch.core.Tuple;
 import org.elasticsearch.index.IndexNotFoundException;
 import org.elasticsearch.indices.SystemIndices;
@@ -58,12 +56,6 @@ public AutoCreateIndex(
         clusterSettings.addSettingsUpdateConsumer(AUTO_CREATE_INDEX_SETTING, this::setAutoCreate);
     }
 
-    @FixForMultiProject
-    @Deprecated
-    public boolean shouldAutoCreate(String index, ClusterState state) {
-        return shouldAutoCreate(index, state.metadata().getProject());
-    }
-
     /**
      * Should the index be auto created?
      * @throws IndexNotFoundException if the index doesn't exist and shouldn't be auto created