Revert "Optimize calculating the presence of a quorum (#83638) (#83674)" (#83679)

This reverts commit e1935d7.

Author: arteam

server/src/main/java/org/elasticsearch/cluster/coordination/CoordinationMetadata.java

@@ -346,13 +346,9 @@ public void writeTo(StreamOutput out) throws IOException {
         }
 
         public boolean hasQuorum(Collection<String> votes) {
-            int votedNodesCount = 0;
-            for (String nodeId : nodeIds) {
-                if (votes.contains(nodeId)) {
-                    votedNodesCount++;
-                }
-            }
-            return votedNodesCount * 2 > nodeIds.size();
+            final HashSet<String> intersection = new HashSet<>(nodeIds);
+            intersection.retainAll(votes);
+            return intersection.size() * 2 > nodeIds.size();
         }
 
         public Set<String> getNodeIds() {