Remove skip with semantic_text tests in ES|QL (elastic#123948)

This change removes the skipping introduced for the semantic_text tests 
in elastic#122222. These tests were accidentally re-enabled without failures
over the last two weeks, so we can now re-enable them.

Closes elastic#121411
Relates elastic#122222

Author: dnhatn

x-pack/plugin/esql/qa/server/mixed-cluster/src/javaRestTest/java/org/elasticsearch/xpack/esql/qa/mixed/MixedClusterEsqlSpecIT.java

@@ -70,11 +70,6 @@ protected void shouldSkipTest(String testName) throws IOException {
         assumeTrue("Test " + testName + " is skipped on " + bwcVersion, isEnabled(testName, instructions, bwcVersion));
     }
 
-    @Override
-    protected boolean shouldSkipTestsWithSemanticTextFields() {
-        return true;
-    }
-
     @Override
     protected boolean enableRoundingDoubleValuesOnAsserting() {
         return true;

x-pack/plugin/esql/qa/server/multi-clusters/src/javaRestTest/java/org/elasticsearch/xpack/esql/ccq/MultiClusterSpecIT.java

@@ -132,11 +132,6 @@ protected void shouldSkipTest(String testName) throws IOException {
         assumeFalse("UNMAPPED FIELDS not yet supported in CCS", testCase.requiredCapabilities.contains(UNMAPPED_FIELDS.capabilityName()));
     }
 
-    @Override
-    protected boolean shouldSkipTestsWithSemanticTextFields() {
-        return true;
-    }
-
     private TestFeatureService remoteFeaturesService() throws IOException {
         if (remoteFeaturesService == null) {
             var remoteNodeVersions = readVersionsFromNodesInfo(remoteClusterClient());

x-pack/plugin/esql/qa/server/single-node/src/javaRestTest/java/org/elasticsearch/xpack/esql/qa/single_node/EsqlSpecIT.java

@@ -43,11 +43,6 @@ protected boolean enableRoundingDoubleValuesOnAsserting() {
         return cluster.getNumNodes() > 1;
     }
 
-    @Override
-    protected boolean shouldSkipTestsWithSemanticTextFields() {
-        return cluster.getNumNodes() > 1;
-    }
-
     @Override
     protected boolean supportsSourceFieldMapping() {
         return cluster.getNumNodes() == 1;

x-pack/plugin/esql/qa/server/src/main/java/org/elasticsearch/xpack/esql/qa/rest/EsqlSpecTestCase.java

@@ -70,7 +70,6 @@
 import static org.elasticsearch.xpack.esql.CsvTestsDataLoader.deleteInferenceEndpoint;
 import static org.elasticsearch.xpack.esql.CsvTestsDataLoader.loadDataSetIntoEs;
 import static org.elasticsearch.xpack.esql.EsqlTestUtils.classpathResources;
-import static org.elasticsearch.xpack.esql.action.EsqlCapabilities.Cap.SEMANTIC_TEXT_TYPE;
 import static org.elasticsearch.xpack.esql.action.EsqlCapabilities.Cap.SOURCE_FIELD_MAPPING;
 
 // This test can run very long in serverless configurations
@@ -130,9 +129,6 @@ protected EsqlSpecTestCase(
 
     @Before
     public void setup() throws IOException {
-        if (shouldSkipTestsWithSemanticTextFields()) {
-            assumeFalse("semantic_text tests are muted", testCase.requiredCapabilities.contains(SEMANTIC_TEXT_TYPE.capabilityName()));
-        }
         if (supportsInferenceTestService() && clusterHasInferenceEndpoint(client()) == false) {
             createInferenceEndpoint(client());
         }
@@ -144,11 +140,6 @@ public void setup() throws IOException {
         }
     }
 
-    // https://github.com/elastic/elasticsearch/issues/121411
-    protected boolean shouldSkipTestsWithSemanticTextFields() {
-        return false;
-    }
-
     @AfterClass
     public static void wipeTestData() throws IOException {
         try {
@@ -184,9 +175,6 @@ protected void shouldSkipTest(String testName) throws IOException {
         }
         checkCapabilities(adminClient(), testFeatureService, testName, testCase);
         assumeTrue("Test " + testName + " is not enabled", isEnabled(testName, instructions, Version.CURRENT));
-        if (shouldSkipTestsWithSemanticTextFields()) {
-            assumeFalse("semantic_text tests are muted", testCase.requiredCapabilities.contains(SEMANTIC_TEXT_TYPE.capabilityName()));
-        }
         if (supportsSourceFieldMapping() == false) {
             assumeFalse("source mapping tests are muted", testCase.requiredCapabilities.contains(SOURCE_FIELD_MAPPING.capabilityName()));
         }