Migrate initial transport version for 9.0 (elastic#134179)

This leaves the latest initial elasticsearch transport version for 9.0 as a marker.

ES-12334

Author: jdconrad

server/src/main/java/org/elasticsearch/TransportVersions.java

@@ -182,10 +182,6 @@ static TransportVersion def(int id) {
     public static final TransportVersion RETRY_ILM_ASYNC_ACTION_REQUIRE_ERROR_90 = def(9_000_0_07);
     public static final TransportVersion RE_REMOVE_MIN_COMPATIBLE_SHARD_NODE_90 = def(9_000_0_08);
     public static final TransportVersion STORED_SCRIPT_CONTENT_LENGTH_90 = def(9_000_0_09);
-    public static final TransportVersion INITIAL_ELASTICSEARCH_9_0_1 = def(9_000_0_10);
-    public static final TransportVersion INITIAL_ELASTICSEARCH_9_0_2 = def(9_000_0_11);
-    public static final TransportVersion INITIAL_ELASTICSEARCH_9_0_3 = def(9_000_0_12);
-    public static final TransportVersion INITIAL_ELASTICSEARCH_9_0_4 = def(9_000_0_13);
     public static final TransportVersion INITIAL_ELASTICSEARCH_9_0_7 = def(9_000_0_16);
 
     /*

server/src/main/resources/transport/definitions/unreferable/initial_elasticsearch_9_0_1.csv

@@ -0,0 +1 @@
+9000010

server/src/main/resources/transport/definitions/unreferable/initial_elasticsearch_9_0_2.csv

@@ -0,0 +1 @@
+9000011

server/src/main/resources/transport/definitions/unreferable/initial_elasticsearch_9_0_3.csv

@@ -0,0 +1 @@
+9000012

server/src/main/resources/transport/definitions/unreferable/initial_elasticsearch_9_0_4.csv

@@ -0,0 +1 @@
+9000013