1 files changed, 0 insertions, 65 deletions
diff --git a/packages/subproviders/src/subproviders/redundant_subprovider.ts b/packages/subproviders/src/subproviders/redundant_subprovider.ts
deleted file mode 100644
index 58312f203..000000000
--- a/packages/subproviders/src/subproviders/redundant_subprovider.ts
+++ /dev/null
@@ -1,65 +0,0 @@
-import { promisify } from '@0x/utils';
-import { JSONRPCRequestPayload } from 'ethereum-types';
-import * as _ from 'lodash';
-
-import { Callback } from '../types';
-
-import { Subprovider } from './subprovider';
-
-/**
- * This class implements the [web3-provider-engine](https://github.com/MetaMask/provider-engine) subprovider interface.
- * It attempts to handle each JSON RPC request by sequentially attempting to receive a valid response from one of a
- * set of JSON RPC endpoints.
- */
-export class RedundantSubprovider extends Subprovider {
-    private readonly _subproviders: Subprovider[];
-    private static async _firstSuccessAsync(
-        subproviders: Subprovider[],
-        payload: JSONRPCRequestPayload,
-        next: Callback,
-    ): Promise<any> {
-        let lastErr: Error | undefined;
-        for (const subprovider of subproviders) {
-            try {
-                const data = await promisify(subprovider.handleRequest.bind(subprovider))(payload, next);
-                return data;
-            } catch (err) {
-                lastErr = err;
-                continue;
-            }
-        }
-        if (!_.isUndefined(lastErr)) {
-            throw lastErr;
-        }
-    }
-    /**
-     * Instantiates a new RedundantSubprovider
-     * @param subproviders Subproviders to attempt the request with
-     */
-    constructor(subproviders: Subprovider[]) {
-        super();
-        this._subproviders = subproviders;
-    }
-    /**
-     * This method conforms to the web3-provider-engine interface.
-     * It is called internally by the ProviderEngine when it is this subproviders
-     * turn to handle a JSON RPC request.
-     * @param payload JSON RPC payload
-     * @param next Callback to call if this subprovider decides not to handle the request
-     * @param end Callback to call if subprovider handled the request and wants to pass back the request.
-     */
-    // tslint:disable-next-line:async-suffix
-    public async handleRequest(
-        payload: JSONRPCRequestPayload,
-        next: Callback,
-        end: (err: Error | null, data?: any) => void,
-    ): Promise<void> {
-        const subprovidersCopy = this._subproviders.slice();
-        try {
-            const data = await RedundantSubprovider._firstSuccessAsync(subprovidersCopy, payload, next);
-            end(null, data);
-        } catch (err) {
-            end(err);
-        }
-    }
-}