Update TestSparseInferenceServiceExtension to not support text embeddings (elastic#126618) (elastic#126630)

Author: Mikep86

x-pack/plugin/inference/qa/inference-service-tests/src/javaRestTest/java/org/elasticsearch/xpack/inference/InferenceGetServicesIT.java

@@ -65,7 +65,7 @@ public void testGetServicesWithoutTaskType() throws IOException {
     @SuppressWarnings("unchecked")
     public void testGetServicesWithTextEmbeddingTaskType() throws IOException {
         List<Object> services = getServices(TaskType.TEXT_EMBEDDING);
-        assertThat(services.size(), equalTo(16));
+        assertThat(services.size(), equalTo(15));
 
         String[] providers = new String[services.size()];
         for (int i = 0; i < services.size(); i++) {
@@ -87,7 +87,6 @@ public void testGetServicesWithTextEmbeddingTaskType() throws IOException {
                 "jinaai",
                 "mistral",
                 "openai",
-                "test_service",
                 "text_embedding_test_service",
                 "voyageai",
                 "watsonxai"

x-pack/plugin/inference/qa/test-service-plugin/src/main/java/org/elasticsearch/xpack/inference/mock/TestSparseInferenceServiceExtension.java

@@ -63,7 +63,7 @@ public TestSparseModel(String inferenceEntityId, TestServiceSettings serviceSett
     public static class TestInferenceService extends AbstractTestInferenceService {
         public static final String NAME = "test_service";
 
-        private static final EnumSet<TaskType> supportedTaskTypes = EnumSet.of(TaskType.SPARSE_EMBEDDING, TaskType.TEXT_EMBEDDING);
+        private static final EnumSet<TaskType> supportedTaskTypes = EnumSet.of(TaskType.SPARSE_EMBEDDING);
 
         public TestInferenceService(InferenceServiceExtension.InferenceServiceFactoryContext context) {}