Remove unused Metadata struct (#3001)

go.mod

@@ -9,7 +9,7 @@ go 1.21.9
 require (
 	github.com/DataDog/zstd v1.5.2
 	github.com/NYTimes/gziphandler v1.1.1
-	github.com/ava-labs/coreth v0.13.3-rc.2
+	github.com/ava-labs/coreth v0.13.4-0.20240506124912-82b6c4e91557
 	github.com/ava-labs/ledger-avalanche/go v0.0.0-20231102202641-ae2ebdaeac34
 	github.com/btcsuite/btcd/btcutil v1.1.3
 	github.com/cockroachdb/pebble v0.0.0-20230906160148-46873a6a7a06

go.sum

@@ -60,8 +60,8 @@ github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156 h1:eMwmnE/GDgah4HI848JfFxHt+iPb26b4zyfspmqY0/8=
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156/go.mod h1:Cb/ax3seSYIx7SuZdm2G2xzfwmv3TPSk2ucNfQESPXM=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
-github.com/ava-labs/coreth v0.13.3-rc.2 h1:lhyQwln6at1DTs1O586dMSAtGtSfQWlt2WH+Z2kgYdQ=
-github.com/ava-labs/coreth v0.13.3-rc.2/go.mod h1:4l15XGak3FklhIb7CtlC/1YVwGAfMl83R2zd2N0hNE0=
+github.com/ava-labs/coreth v0.13.4-0.20240506124912-82b6c4e91557 h1:92JWd4u2pqpO551gXUIZ/qDZu3l7vn8jIxX2qRyyFwM=
+github.com/ava-labs/coreth v0.13.4-0.20240506124912-82b6c4e91557/go.mod h1:yMIxezDyB/5moKt8LlATlfwR/Z5cmipY3gUQ1SqHvQ0=
 github.com/ava-labs/ledger-avalanche/go v0.0.0-20231102202641-ae2ebdaeac34 h1:mg9Uw6oZFJKytJxgxnl3uxZOs/SB8CVHg6Io4Tf99Zc=
 github.com/ava-labs/ledger-avalanche/go v0.0.0-20231102202641-ae2ebdaeac34/go.mod h1:pJxaT9bUgeRNVmNRgtCHb7sFDIRKy7CzTQVi8gGNT6g=
 github.com/aymerick/raymond v2.0.3-0.20180322193309-b565731e1464+incompatible/go.mod h1:osfaiScAUVup+UC9Nfq76eWqDhXlp+4UYaA8uhTBO6g=