fix: getConfirmationTime() was removed upstream

web3.js/module.flow.js

@@ -59,7 +59,6 @@ declare module '@solana/web3.js' {
     ): Promise<SignatureStatus>;
     getTransactionCount(): Promise<number>;
     getLastId(): Promise<TransactionId>;
-    getConfirmationTime(): Promise<number>;
     requestAirdrop(
       to: PublicKey,
       amount: number,

web3.js/src/connection.js

@@ -128,11 +128,6 @@ const GetTransactionCountRpcResult = jsonRpcResult('number');
  */
 const GetLastId = jsonRpcResult('string');
 
-/**
- * Expected JSON RPC response for the "getConfirmationTime" message
- */
-const GetConfirmationTimeRpcResult = jsonRpcResult('number');
-
 /**
  * Expected JSON RPC response for the "requestAirdrop" message
  */
@@ -328,19 +323,6 @@ export class Connection {
     return res.result;
   }
 
-  /**
-   * Return the current cluster confirmation time in millliseconds
-   */
-  async getConfirmationTime(): Promise<number> {
-    const unsafeRes = await this._rpcRequest('getConfirmationTime', []);
-    const res = GetConfirmationTimeRpcResult(unsafeRes);
-    if (res.error) {
-      throw new Error(res.error.message);
-    }
-    assert(typeof res.result !== 'undefined');
-    return Number(res.result);
-  }
-
   /**
    * Request an allocation of tokens to the specified account
    */

web3.js/test/connection.test.js

@@ -123,25 +123,6 @@ test('get last Id', async () => {
   expect(lastId.length).toBeGreaterThanOrEqual(43);
 });
 
-test('get confirmation time', async () => {
-  const connection = new Connection(url);
-
-  mockRpc.push([
-    url,
-    {
-      method: 'getConfirmationTime',
-      params: [],
-    },
-    {
-      error: null,
-      result: 123,
-    },
-  ]);
-
-  const finality = await connection.getConfirmationTime();
-  expect(finality).toBeGreaterThanOrEqual(0);
-});
-
 test('request airdrop', async () => {
   const account = new Account();
   const connection = new Connection(url);