fix(sdk-coin-trx): isValidAddress allows only base58 address format

BREAKING CHANGE: isValidAddress for Tron used to allow hex addresses and base58 format addresses.
But Tron build API expect addresses to be passed in Base58check format. Hence removing the support of hex addresses
TICKET: COIN-3940

Author: gianchandania

modules/sdk-coin-trx/src/trx.ts

@@ -190,15 +190,15 @@ export class Trx extends BaseCoin {
   }
 
   /**
-   * Checks if this is a valid base58 or hex address
+   * Checks if this is a valid base58
    * @param address
    */
   isValidAddress(address: string): boolean {
     if (!address) {
       return false;
     }
 
-    return this.isValidHexAddress(address) || Utils.isBase58Address(address);
+    return Utils.isBase58Address(address);
   }
 
   /**

modules/sdk-coin-trx/test/unit/trx.ts

@@ -62,17 +62,14 @@ describe('TRON:', function () {
       'TBChwKYNaTo4a4N68Me1qEiiKsRDspXqLLZ',
       '0x96be113992bdc3be24c11f6017085b605d253649',
       '0x341qg3922b1',
-    ];
-    const goodAddresses = [
-      'TBChwKYNaTo4a4N68Me1qEiiKsRDspXqLp',
-      'TPcf5jtYUhCN1X14tN577zF4NepbDZbxT7',
       '41E0C0F581D7D02D40826C1C6CBEE71F625D6344D0',
       '412C2BA4A9FF6C53207DC5B686BFECF75EA7B80577',
       '418840E6C55B9ADA326D211D818C34A994AECED808',
       '412A2B9F7641D0750C1E822D0E49EF765C8106524B',
       '41A614F803B6FD780986A42C78EC9C7F77E6DED13C',
       '418840E6C55B9ADA326D211D818C34A994AECED808',
     ];
+    const goodAddresses = ['TBChwKYNaTo4a4N68Me1qEiiKsRDspXqLp', 'TPcf5jtYUhCN1X14tN577zF4NepbDZbxT7'];
 
     badAddresses.map((addr) => {
       assert.equal(basecoin.isValidAddress(addr), false);