DRIVERS-2768 revert skip of 7.1 to searchIndexIgnoresReadWriteConcern (#1651)

The skip was added as part of 8be1189. The skip is not necessary since the test does not specify `SearchIndexOptions.type`.

Author: kevinAlbs

source/index-management/tests/searchIndexIgnoresReadWriteConcern.json

@@ -20,13 +20,7 @@ createEntities:
       collectionName: *collection0
 
 runOnRequirements:
-  # Skip server versions without fix of SERVER-83107 to avoid error message "BSON field 'createSearchIndexes.indexes.type' is an unknown field."
-  # SERVER-83107 was not backported to 7.1.
-  - minServerVersion: "7.0.5"
-    maxServerVersion: "7.0.99"
-    topologies: [ replicaset, load-balanced, sharded ]
-    serverless: forbid
-  - minServerVersion: "7.2.0"
+  - minServerVersion: "7.0.0"
     topologies: [ replicaset, load-balanced, sharded ]
     serverless: forbid