Drop Horizon fields that will be removed in Protocol 22

[Shaptic]

Reference: https://github.com/stellar/go/issues/5438.

[github-actions[bot]]

Size Change: 0 B

Total Size: 49 MB

ℹ️ View Unchanged

Filename	Size
dist/stellar-sdk-minimal.js	6.75 MB
dist/stellar-sdk-minimal.min.js	5.27 MB
dist/stellar-sdk-no-axios.js	6.75 MB
dist/stellar-sdk-no-axios.min.js	5.27 MB
dist/stellar-sdk-no-eventsource.js	7 MB
dist/stellar-sdk-no-eventsource.min.js	5.48 MB
dist/stellar-sdk.js	7 MB
dist/stellar-sdk.min.js	5.48 MB

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