Remove 'use strict' from migrated files

src/ResourceNamespace.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 // ResourceNamespace allows you to create nested resources, i.e. `stripe.issuing.cards`.
 // It also works recursively, so you could do i.e. `stripe.billing.invoicing.pay`.
 

src/Webhooks.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 import utils = require('./utils');
 import _Error = require('./Error');
 const {StripeError, StripeSignatureVerificationError} = _Error;

src/crypto/CryptoProvider.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 /**
  * Interface encapsulating the various crypto computations used by the library,
  * allowing pluggable underlying crypto implementations.

src/crypto/NodeCryptoProvider.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 import crypto = require('crypto');
 
 import CryptoProvider = require('./CryptoProvider');

src/crypto/SubtleCryptoProvider.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 import CryptoProvider = require('./CryptoProvider');
 
 /**

src/multipart.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 import utils = require('./utils');
 import _Error = require('./Error');
 const {StripeError} = _Error;

src/net/FetchHttpClient.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 import _HttpClient = require('./HttpClient');
 const {HttpClient, HttpClientResponse} = _HttpClient;
 

src/net/HttpClient.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 type TimeoutError = TypeError & {code?: string};
 
 /**

src/net/NodeHttpClient.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 import http = require('http');
 import https = require('https');
 

src/utils.ts

@@ -1,5 +1,3 @@
-'use strict';
-
 const EventEmitter = require('events').EventEmitter;
 const qs = require('qs');
 const crypto = require('crypto');