Fix C* 3.0 tests failing on Jenkins

patch by Lukasz Antoniak; reviewed by Bret McGuire
reference: apache#1939

Author: lukasz-antoniak

integration-tests/src/test/java/com/datastax/oss/driver/mapper/DeleteIT.java

@@ -60,8 +60,7 @@
     description = ">= in WHERE clause not supported in legacy versions")
 public class DeleteIT extends InventoryITBase {
 
-  private static CustomCcmRule CCM_RULE =
-      CustomCcmRule.builder().withCassandraConfiguration("enable_sasi_indexes", "true").build();
+  private static CustomCcmRule CCM_RULE = CustomCcmRule.builder().build();
 
   private static final SessionRule<CqlSession> SESSION_RULE = SessionRule.builder(CCM_RULE).build();
 

integration-tests/src/test/java/com/datastax/oss/driver/mapper/InventoryITBase.java

@@ -59,6 +59,10 @@ public abstract class InventoryITBase {
       new ProductSale(MP3_DOWNLOAD.getId(), DATE_3, 7, Uuids.startOf(915192000), 0.99, 12);
 
   protected static List<String> createStatements(BaseCcmRule ccmRule) {
+    return createStatements(ccmRule, false);
+  }
+
+  protected static List<String> createStatements(BaseCcmRule ccmRule, boolean requiresSasiIndex) {
     ImmutableList.Builder<String> builder =
         ImmutableList.<String>builder()
             .add(
@@ -71,7 +75,7 @@ protected static List<String> createStatements(BaseCcmRule ccmRule) {
                 "CREATE TABLE product_sale(id uuid, day text, ts uuid, customer_id int, price "
                     + "double, count int, PRIMARY KEY ((id, day), customer_id, ts))");
 
-    if (supportsSASI(ccmRule) && !isSasiBroken(ccmRule)) {
+    if (requiresSasiIndex && supportsSASI(ccmRule) && !isSasiBroken(ccmRule)) {
       builder.add(
           "CREATE CUSTOM INDEX product_description ON product(description) "
               + "USING 'org.apache.cassandra.index.sasi.SASIIndex' "

integration-tests/src/test/java/com/datastax/oss/driver/mapper/SelectCustomWhereClauseIT.java

@@ -75,7 +75,7 @@ public static void setup() {
 
     SchemaChangeSynchronizer.withLock(
         () -> {
-          for (String query : createStatements(CCM_RULE)) {
+          for (String query : createStatements(CCM_RULE, true)) {
             session.execute(
                 SimpleStatement.builder(query)
                     .setExecutionProfile(SESSION_RULE.slowProfile())