remove access to patching elasticsearch client directly as it is not supported anymore by elasticsearch

lib/datadog/tracing/contrib/elasticsearch/patcher.rb

@@ -34,26 +34,8 @@ module Client
             # rubocop:disable Metrics/MethodLength
             # rubocop:disable Metrics/AbcSize
             def perform_request(*args)
-              # DEV-2.0: Remove this access, as `Client#self` in this context is not exposed to the user
-              # since `elasticsearch` v8.0.0. In contrast, `Client#transport` is always available across
-              # all `elasticsearch` gem versions and should be used instead.
-              service = Datadog.configuration_for(self, :service_name)
-
-              if service
-                SELF_DEPRECATION_ONLY_ONCE.run do
-                  Datadog.logger.warn(
-                    'Providing configuration though the Elasticsearch client object is deprecated.' \
-                    'Configure the `client#transport` object instead: ' \
-                    'Datadog.configure_onto(client.transport, service_name: service_name, ...)'
-                  )
-                end
-              end
-
-              # `Client#transport` is most convenient object both this integration and the library
-              # user have shared access to across all `elasticsearch` versions.
-              #
-              # `Client#self` in this context is an internal object that the library user
-              # does not have access to since `elasticsearch` v8.0.0.
+              # `Client#transport` is the most convenient object both for this integration and the library
+              # as users have shared access to it across all `elasticsearch` versions.
               service ||= Datadog.configuration_for(transport, :service_name) || datadog_configuration[:service_name]
 
               method = args[0]

spec/datadog/tracing/contrib/elasticsearch/transport_spec.rb

@@ -174,50 +174,4 @@ def call(env)
       end
     end
   end
-
-  describe 'client configuration override' do
-    context 'when #service is overridden' do
-      before { Datadog.configure_onto(client.transport, service_name: service_name) }
-
-      let(:service_name) { 'bar' }
-
-      describe 'then a GET request' do
-        subject(:response) { client.perform_request(method, path) }
-
-        let(:method) { 'GET' }
-        let(:path) { '_cluster/health' }
-
-        before do
-          stub_request(:get, "#{server}/#{path}").to_return(status: 200)
-        end
-
-        it 'produces a well-formed trace' do
-          expect(response.status).to eq(200)
-          expect(WebMock).to have_requested(:get, "#{server}/#{path}")
-          expect(spans).to have(1).items
-          expect(span.name).to eq('elasticsearch.query')
-          expect(span.service).to eq(service_name)
-        end
-
-        context 'configured at the Elasticsearch client level' do
-          before do
-            skip('Configuration through client object is not possible in Elasticsearch >= 8.0.0') if version_greater_than_8
-
-            Datadog::Tracing::Contrib::Elasticsearch::Patcher::SELF_DEPRECATION_ONLY_ONCE
-              .send(:reset_ran_once_state_for_tests)
-
-            Datadog.configure_onto(client, service_name: 'custom')
-          end
-
-          let(:version_greater_than_8) { Gem::Version.new(::Elasticsearch::VERSION) >= Gem::Version.new('8.0.0') }
-
-          it 'warns about deprecated configuration of the Elasticsearch client itself' do
-            expect { response }.to emit_deprecation_warning(
-              include('Providing configuration though the Elasticsearch client object is deprecated')
-            )
-          end
-        end
-      end
-    end
-  end
 end