Remove unnecessary product tests

plugin/trino-teradata-functions/src/test/java/io/trino/plugin/teradata/functions/TestTeradataFunctions.java

@@ -121,4 +121,28 @@ public void testChar2HexIntUtf8()
                 .hasType(VARCHAR)
                 .isEqualTo("002830CE0CA076CA0CA0002930CE5F61253B2501253B");
     }
+
+    @Test
+    public void testToDate()
+    {
+        assertThat(assertions.function("to_date", "'1988/04/01'", "'yyyy/mm/dd'"))
+                .matches("DATE '1988-04-01'");
+        assertThat(assertions.function("to_date", "'1988/04/08'", "'yyyy/mm/dd'"))
+                .matches("DATE '1988-04-08'");
+    }
+
+    @Test
+    public void testToTimestamp()
+    {
+        assertThat(assertions.function("to_timestamp", "'1988/04/08;02:03:04'", "'yyyy/mm/dd;hh24:mi:ss'"))
+                .matches("TIMESTAMP '1988-04-08 02:03:04.000'");
+    }
+
+    @Test
+    public void testToChar()
+    {
+        assertThat(assertions.function("to_char", "TIMESTAMP '1988-04-08 14:15:16 +02:09'", "'yyyy/mm/dd;hh24:mi:ss'"))
+                .hasType(VARCHAR)
+                .isEqualTo("1988/04/08;14:15:16");
+    }
 }

testing/trino-product-tests/src/main/java/io/trino/tests/product/TestGroups.java

@@ -20,7 +20,6 @@ public final class TestGroups
     public static final String ALTER_TABLE = "alter_table";
     public static final String COMMENT = "comment";
     public static final String SIMPLE = "simple";
-    public static final String FUNCTIONS = "functions";
     public static final String CLI = "cli";
     public static final String SYSTEM_CONNECTOR = "system";
     public static final String CONFIGURED_FEATURES = "configured_features";
@@ -33,10 +32,6 @@ public final class TestGroups
     public static final String OAUTH2_REFRESH = "oauth2_refresh";
     public static final String MYSQL = "mysql";
     public static final String TRINO_JDBC = "trino_jdbc";
-    public static final String QUERY_ENGINE = "qe";
-    public static final String COMPARISON = "comparison";
-    public static final String LOGICAL = "logical";
-    public static final String JSON_FUNCTIONS = "json_functions";
     public static final String STORAGE_FORMATS = "storage_formats";
     public static final String STORAGE_FORMATS_DETAILED = "storage_formats_detailed";
     public static final String HMS_ONLY = "hms_only";