[Remove] types based addMapping method from CreateIndexRequest and Builder

[nknize]

Removes the obsolete types based .addMapping method from CreateIndexRequest and
CreateIndexRequestBuilder. Tests are refactored to use the new source only
setMapping method.

relates #1940
depends on #2469

[opensearch-ci-bot]

Can one of the admins verify this patch?

[opensearch-ci-bot]

❌   Gradle Check failure ec2b916eea8f52746b2d1b41efd5baf0922bef18
Log 3349

Reports 3349

[dreamer-89]

1. testReindexTask

REPRODUCE WITH: ./gradlew ':client:rest-high-level:asyncIntegTest' --tests "org.opensearch.client.ReindexIT.testReindexTask" -Dtests.seed=BC6F51DDE4CE170E -Dtests.security.manager=true -Dtests.jvm.argline="-XX:TieredStopAtLevel=1 -XX:ReservedCodeCacheSize=64m" -Dtests.locale=ar-SA -Dtests.timezone=America/St_Johns -Druntime.java=17

org.opensearch.client.ReindexIT > testReindexTask FAILED
    org.opensearch.client.ResponseException: method [GET], host [http://[::1]:44979], URI [/_tasks/2vU32eVGTlWKuA6HQfLvJw:8140], status line [HTTP/1.1 404 Not Found]
    {"error":{"root_cause":[{"type":"index_not_found_exception","reason":"no such index [.tasks]","index":".tasks","resource.id":".tasks","resource.type":"index_expression","index_uuid":"_na_"}],"type":"resource_not_found_exception","reason":"task [2vU32eVGTlWKuA6HQfLvJw:8140] isn't running and hasn't stored its results","caused_by":{"type":"index_not_found_exception","reason":"no such index [.tasks]","index":".tasks","resource.id":".tasks","resource.type":"index_expression","index_uuid":"_na_"}},"status":404}
        at __randomizedtesting.SeedInfo.seed([BC6F51DDE4CE170E:24C55CD2D25BFD92]:0)
        at app//org.opensearch.client.RestClient.convertResponse(RestClient.java:350)
        at app//org.opensearch.client.RestClient.performRequest(RestClient.java:320)
        at app//org.opensearch.client.RestClient.performRequest(RestClient.java:295)
        at app//org.opensearch.client.OpenSearchRestHighLevelClientTestCase.lambda$checkTaskCompletionStatus$2(OpenSearchRestHighLevelClientTestCase.java:360)
        at app//org.opensearch.test.OpenSearchTestCase.assertBusy(OpenSearchTestCase.java:1048)
        at app//org.opensearch.test.OpenSearchTestCase.assertBusy(OpenSearchTestCase.java:1033)
        at app//org.opensearch.client.ReindexIT.testReindexTask(ReindexIT.java:155)

2. testDeleteByQueryTask

REPRODUCE WITH: ./gradlew ':client:rest-high-level:asyncIntegTest' --tests "org.opensearch.client.ReindexIT.testDeleteByQueryTask" -Dtests.seed=BC6F51DDE4CE170E -Dtests.security.manager=true -Dtests.jvm.argline="-XX:TieredStopAtLevel=1 -XX:ReservedCodeCacheSize=64m" -Dtests.locale=ar-SA -Dtests.timezone=America/St_Johns -Druntime.java=17

org.opensearch.client.ReindexIT > testDeleteByQueryTask FAILED
    org.opensearch.client.ResponseException: method [GET], host [http://[::1]:44979], URI [/_tasks/2vU32eVGTlWKuA6HQfLvJw:8072], status line [HTTP/1.1 404 Not Found]
    {"error":{"root_cause":[{"type":"index_not_found_exception","reason":"no such index [.tasks]","index":".tasks","resource.id":".tasks","resource.type":"index_expression","index_uuid":"_na_"}],"type":"resource_not_found_exception","reason":"task [2vU32eVGTlWKuA6HQfLvJw:8072] isn't running and hasn't stored its results","caused_by":{"type":"index_not_found_exception","reason":"no such index [.tasks]","index":".tasks","resource.id":".tasks","resource.type":"index_expression","index_uuid":"_na_"}},"status":404}
        at __randomizedtesting.SeedInfo.seed([BC6F51DDE4CE170E:71BE98C7A063A131]:0)
        at app//org.opensearch.client.RestClient.convertResponse(RestClient.java:350)
        at app//org.opensearch.client.RestClient.performRequest(RestClient.java:320)
        at app//org.opensearch.client.RestClient.performRequest(RestClient.java:295)
        at app//org.opensearch.client.OpenSearchRestHighLevelClientTestCase.lambda$checkTaskCompletionStatus$2(OpenSearchRestHighLevelClientTestCase.java:360)
        at app//org.opensearch.test.OpenSearchTestCase.assertBusy(OpenSearchTestCase.java:1048)
        at app//org.opensearch.test.OpenSearchTestCase.assertBusy(OpenSearchTestCase.java:1033)
        at app//org.opensearch.client.ReindexIT.testDeleteByQueryTask(ReindexIT.java:331)

3. Yaml related test failures. Most of them failing due to null value for response.total field.

java.lang.AssertionError: Failure at [reindex/80_slices:116]: field [response.total] is null

[nknize]

no such index [.tasks]

This will be fixed by #2469

[opensearch-ci-bot]

❌   Gradle Check failure fee8d2f
Log 3399

Reports 3399

[nknize]

Unrelated, unreproducible failure; reported in #2472. Refiring.

[nknize]

start gradle check

[opensearch-ci-bot]

✅   Gradle Check success fee8d2f
Log 3404

Reports 3404

[dreamer-89]

Nice, LGTM!