[Profiling] Drop deprecated ChunkedToXContentObject.toString() (#120043)

* [Profiling] Drop deprecated ChunkedToXContentObject.toString()

* [CI] Auto commit changes from spotless

---------

Co-authored-by: elasticsearchmachine <[email protected]>

Author: rockdaboot

x-pack/plugin/profiling/src/main/java/org/elasticsearch/xpack/profiling/action/GetStackTracesResponse.java

@@ -8,7 +8,6 @@
 
 import org.elasticsearch.action.ActionResponse;
 import org.elasticsearch.action.support.TransportAction;
-import org.elasticsearch.common.Strings;
 import org.elasticsearch.common.collect.Iterators;
 import org.elasticsearch.common.io.stream.StreamOutput;
 import org.elasticsearch.common.xcontent.ChunkedToXContentHelper;
@@ -142,9 +141,4 @@ public boolean equals(Object o) {
     public int hashCode() {
         return Objects.hash(stackTraces, stackFrames, executables, stackTraceEvents, totalFrames, samplingRate);
     }
-
-    @Override
-    public String toString() {
-        return Strings.toString(this, true, true);
-    }
 }