refactor: remove Amplitude network and related configurations

Author: kvhnuke

packages/extension/src/providers/polkadot/networks/index.ts

@@ -8,7 +8,6 @@ import bncNode from './bifrost/polkadot';
 import bncKusamaNode from './bifrost/kusama';
 import uniqueNode from './unique/unique';
 import penNode from './pendulum/pendulum';
-import ampeNode from './pendulum/amplitude';
 import varaNode from './vara';
 import {
   assethubDOT as assetHubDotNode,
@@ -26,7 +25,6 @@ export default {
   bifrostKusama: bncKusamaNode,
   unique: uniqueNode,
   pendulum: penNode,
-  amplitude: ampeNode,
   vara: varaNode,
   assetHubDOT: assetHubDotNode,
   assetHubKSM: assetHubKsmNode,

packages/extension/src/providers/polkadot/networks/pendulum/amplitude.ts

@@ -46,7 +46,6 @@ export enum NetworkNames {
   Shibarium = "SHIB",
   Unique = "UNQ",
   Pendulum = "pendulum",
-  Amplitude = "amplitude",
   Vara = "VARA",
   Base = "BASE",
   Celo = "CELO",