Revert "SOLR-14354: Fix compile errors after cherry-pick"

This reverts commit 21d811d29615ac47bc51e12a4f9f216af8463c3f.
diff --git a/solr/core/src/java/org/apache/solr/handler/component/HttpShardHandler.java b/solr/core/src/java/org/apache/solr/handler/component/HttpShardHandler.java
index 9dd7c37..b6a8131 100644
--- a/solr/core/src/java/org/apache/solr/handler/component/HttpShardHandler.java
+++ b/solr/core/src/java/org/apache/solr/handler/component/HttpShardHandler.java
@@ -157,7 +157,7 @@
     }
 
     // all variables that set inside this listener must be at least volatile
-    responseCancellableMap.put(srsp, this.lbClient.asyncReq(lbReq, new AsyncListener<LBSolrClient.Rsp>() {
+    responseCancellableMap.put(srsp, this.lbClient.asyncReq(lbReq, new AsyncListener<>() {
       volatile long startTime = System.nanoTime();
 
       @Override
diff --git a/solr/solrj/src/java/org/apache/solr/client/solrj/impl/LBHttp2SolrClient.java b/solr/solrj/src/java/org/apache/solr/client/solrj/impl/LBHttp2SolrClient.java
index 31ddfb4..8898092 100644
--- a/solr/solrj/src/java/org/apache/solr/client/solrj/impl/LBHttp2SolrClient.java
+++ b/solr/solrj/src/java/org/apache/solr/client/solrj/impl/LBHttp2SolrClient.java
@@ -148,7 +148,7 @@
                          boolean isZombie, RetryListener listener) {
     rsp.server = baseUrl;
     req.getRequest().setBasePath(baseUrl);
-    return ((Http2SolrClient)getClient(baseUrl)).asyncRequest(req.getRequest(), null, new AsyncListener<NamedList<Object>>() {
+    return ((Http2SolrClient)getClient(baseUrl)).asyncRequest(req.getRequest(), null, new AsyncListener<>() {
       @Override
       public void onSuccess(NamedList<Object> result) {
         rsp.rsp = result;