Remove webcrypto polyfill, as it's no longer needed

src/platform/polyfills.native.ts

@@ -1,30 +1 @@
-import {NativeModules} from 'react-native'
-const {AppSecureRandomModule} = NativeModules
-import {toByteArray} from 'base64-js'
-// @ts-ignore we dont have types for this -prf
-import crypto from '../third-party/msrcrypto'
 import '@zxing/text-encoding' // TextEncoder / TextDecoder
-
-async function generateSecureRandom(bytes: number) {
-  return toByteArray(
-    await AppSecureRandomModule.generateSecureRandomAsBase64(bytes),
-  )
-}
-
-export const whenWebCrypto = new Promise(async (resolve, reject) => {
-  try {
-    const bytes = await generateSecureRandom(48)
-    crypto.initPrng(Array.from(bytes))
-
-    // @ts-ignore global.window exists -prf
-    if (!global.window.crypto) {
-      // @ts-ignore global.window exists -prf
-      global.window.crypto = crypto
-    }
-    resolve(true)
-  } catch (e: any) {
-    reject(e)
-  }
-})
-
-export const webcrypto = crypto