test: fix duplicate DRep vote delegation operations in golden files

Remove duplicate dRepVoteDelegation operations from integration test
golden files. These duplicates were appearing due to the certificate
processing logic creating operations twice.

This fix aligns with the TransactionOperationParser refactoring that
properly handles DRep vote delegation certificates.

Author: Mateusz Czeladka

tests/integration/golden_examples/rosetta_java/construction/parse/drep_vote_delegation/drep_delegation_abstain.json

@@ -73,24 +73,6 @@
             "type": "abstain"
           }
         }
-      },
-      {
-        "operation_identifier": {
-          "index": 2
-        },
-        "type": "dRepVoteDelegation",
-        "account": {
-          "address": "stake_test1uql3k2h9kskfma8y53vth7wmptmlw8zxx67cx7c3pwj8sqs6zl0wr"
-        },
-        "metadata": {
-          "staking_credential": {
-            "hex_bytes": "fdbee86a702c49d23f45ab80e697b93ec48b744d5f413ef59c338c3f7b2d2de8",
-            "curve_type": "edwards25519"
-          },
-          "drep": {
-            "type": "abstain"
-          }
-        }
       }
     ],
     "account_identifier_signers": []

tests/integration/golden_examples/rosetta_java/construction/parse/drep_vote_delegation/drep_delegation_key_hash.json

@@ -74,25 +74,6 @@
             "type": "key_hash"
           }
         }
-      },
-      {
-        "operation_identifier": {
-          "index": 2
-        },
-        "type": "dRepVoteDelegation",
-        "account": {
-          "address": "stake_test1uql3k2h9kskfma8y53vth7wmptmlw8zxx67cx7c3pwj8sqs6zl0wr"
-        },
-        "metadata": {
-          "staking_credential": {
-            "hex_bytes": "fdbee86a702c49d23f45ab80e697b93ec48b744d5f413ef59c338c3f7b2d2de8",
-            "curve_type": "edwards25519"
-          },
-          "drep": {
-            "id": "f72050aa252ccc6bf75747184910c0b9386298167656f935d6b6c26a",
-            "type": "key_hash"
-          }
-        }
       }
     ],
     "account_identifier_signers": []

tests/integration/golden_examples/rosetta_java/construction/parse/drep_vote_delegation/drep_delegation_no_confidence.json

@@ -73,24 +73,6 @@
             "type": "no_confidence"
           }
         }
-      },
-      {
-        "operation_identifier": {
-          "index": 2
-        },
-        "type": "dRepVoteDelegation",
-        "account": {
-          "address": "stake_test1uql3k2h9kskfma8y53vth7wmptmlw8zxx67cx7c3pwj8sqs6zl0wr"
-        },
-        "metadata": {
-          "staking_credential": {
-            "hex_bytes": "fdbee86a702c49d23f45ab80e697b93ec48b744d5f413ef59c338c3f7b2d2de8",
-            "curve_type": "edwards25519"
-          },
-          "drep": {
-            "type": "no_confidence"
-          }
-        }
       }
     ],
     "account_identifier_signers": []

tests/integration/golden_examples/rosetta_java/construction/parse/drep_vote_delegation/drep_delegation_script_hash.json

@@ -74,25 +74,6 @@
             "type": "script_hash"
           }
         }
-      },
-      {
-        "operation_identifier": {
-          "index": 2
-        },
-        "type": "dRepVoteDelegation",
-        "account": {
-          "address": "stake_test1uql3k2h9kskfma8y53vth7wmptmlw8zxx67cx7c3pwj8sqs6zl0wr"
-        },
-        "metadata": {
-          "staking_credential": {
-            "hex_bytes": "fdbee86a702c49d23f45ab80e697b93ec48b744d5f413ef59c338c3f7b2d2de8",
-            "curve_type": "edwards25519"
-          },
-          "drep": {
-            "id": "2d4cb680b5f400d3521d272b4295d61150e0eff3950ef4285406a953",
-            "type": "script_hash"
-          }
-        }
       }
     ],
     "account_identifier_signers": []

tests/integration/golden_examples/rosetta_java/construction/parse/drep_vote_delegation/drep_id_provided_for_abstain.json

@@ -73,25 +73,6 @@
             "type": "abstain"
           }
         }
-      },
-      {
-        "operation_identifier": {
-          "index": 2
-        },
-        "type": "dRepVoteDelegation",
-        "account": {
-          "address": "stake_test1uql3k2h9kskfma8y53vth7wmptmlw8zxx67cx7c3pwj8sqs6zl0wr"
-        },
-        "metadata": {
-          "staking_credential": {
-            "hex_bytes": "fdbee86a702c49d23f45ab80e697b93ec48b744d5f413ef59c338c3f7b2d2de8",
-            "curve_type": "edwards25519"
-          },
-          "drep": {
-            "id": "f72050aa252ccc6bf75747184910c0b9386298167656f935d6b6c26a",
-            "type": "abstain"
-          }
-        }
       }
     ],
     "account_identifier_signers": []