Remove unused Ledgerco import

packages/website/package.json

@@ -33,7 +33,6 @@
         "find-versions": "^2.0.0",
         "is-mobile": "^0.2.2",
         "jsonschema": "^1.2.0",
-        "ledgerco": "0xProject/ledger-node-js-api",
         "less": "^2.7.2",
         "lodash": "^4.17.4",
         "material-ui": "^0.17.1",

packages/website/ts/globals.d.ts

@@ -10,7 +10,6 @@ declare module 'thenby';
 declare module 'react-highlight';
 declare module 'react-recaptcha';
 declare module 'react-document-title';
-declare module 'ledgerco';
 declare module 'ethereumjs-tx';
 
 declare module '*.json' {