refactoring: Deduplicate code (#10090)

* Deduplicate sync committee indices from state

* Deduplicate code in listblocks RPC endpoints, which only differ in response object

* Deduplicate test code in config/fieldparams

* Delete stale benchmark target. This is already included in go_default_test

* deduplicate test cases in TestIsSlashableValidator_OK and fix blst
BUILD file

* Deduplicate TestStore_IsFinalizedChildBlock

* Revert crypto/bls/blst/BUILD.bazel

* Deduplicate TestStore_SaveBlock_NoDuplicates

* Use a generic wrapper for beacon blocks to streamline test

* Deduplicate TestStore_BlocksCRUD

* Deduplicate TestStore_BlocksHandleZeroCase

* Deduplicate TestStore_BlocksBatchDelete

* deduplicate TestStore_BlocksHandleInvalidEndSlot

* Deduplicate TestStore_BlocksCRUD_NoCache

* Deduplicate common block test setup. Make TestStore_Blocks_FiltersCorrectly support multiple forks in test

* Deduplicate the rest of these tests

* lint

* Deprecation warning

* Add test for WrappedSignedBeaconBlock

* Test error path

beacon-chain/db/kv/BUILD.bazel

@@ -77,8 +77,6 @@ go_test(
     srcs = [
         "archived_point_test.go",
         "backup_test.go",
-        "block_altair_test.go",
-        "block_merge_test.go",
         "blocks_test.go",
         "checkpoint_test.go",
         "deposit_contract_test.go",