refactor(account)!: remove getAddressFromPriv

BREAKING CHANGE: `getAddressFromPriv` removed
Use MemoryAccount instead.
```diff
- address = getAddressFromPriv(secretKeyOldFormat)
+ address = new MemoryAccount(secretKeyNewFormat).address
```
Use SDK tools page to convert secret keys
https://docs.aeternity.com/aepp-sdk-js/develop/examples/browser/tools/

src/index-browser.ts

@@ -6,7 +6,7 @@ export {
 } from './chain';
 export { InvalidTxError, sendTransaction } from './send-transaction';
 export {
-  getAddressFromPriv, isAddressValid, genSalt, encodeUnsigned, hash, encodeContractAddress,
+  isAddressValid, genSalt, encodeUnsigned, hash, encodeContractAddress,
   sign, verify, messageToHash, signMessage, verifyMessage, isValidKeypair,
 } from './utils/crypto';
 export {

src/utils/crypto.ts

@@ -10,17 +10,6 @@ import {
 } from './encoder';
 import { ArgumentError } from './errors';
 
-/**
- * Generate address from secret key
- * @param secret - Private key as hex string
- * @returns Public key encoded as address
- */
-export function getAddressFromPriv(secret: string | Uint8Array): Encoded.AccountAddress {
-  const secretBuffer = typeof secret === 'string' ? Buffer.from(secret, 'hex') : secret;
-  const keys = nacl.sign.keyPair.fromSecretKey(secretBuffer);
-  return encode(keys.publicKey, Encoding.AccountAddress);
-}
-
 /**
  * Check if address is valid
  * @param maybeAddress - Address to check

test/unit/crypto.ts

@@ -3,7 +3,7 @@ import { describe, it } from 'mocha';
 import { assert, expect } from 'chai';
 import {
   buildTxHash, decode, Encoded,
-  getAddressFromPriv, verifyMessage, isValidKeypair, isAddressValid, hash, genSalt,
+  verifyMessage, isValidKeypair, isAddressValid, hash, genSalt,
   sign, verify, messageToHash, signMessage, Encoding,
 } from '../../src';
 
@@ -31,10 +31,6 @@ const txRaw = 'tx_+QTlCwH4QrhA4xEWFIGZUVn0NhnYl9TwGX30YJ9/Y6x6LHU6ALfiupJPORvjbi
 const expectedHash = 'th_HZMNgTvEiyKeATpauJjjeWwZcyHapKG8bDgy2S1sCUEUQnbwK';
 
 describe('crypto', () => {
-  it('Address from secret', () => {
-    getAddressFromPriv(privateKeyAsHex).should.be.equal(address);
-  });
-
   describe('isValidKeypair', () => {
     it('verify the generated key pair', () => {
       const keyPair = {