replace useless test for uppercase with working one

test/post.js

@@ -109,11 +109,6 @@ test('content-type header is not overriden when object in options.body', async t
 	t.is(body['content-type'], 'doge');
 });
 
-test('transforms method to uppercase', async t => {
-	const headers = (await got(s.url, {method: 'get'})).headers;
-	t.is(headers.method, 'GET');
-});
-
 test.after('cleanup', async () => {
 	await s.close();
 });

test/redirects.js

@@ -126,6 +126,11 @@ test('redirects from http to https works', async t => {
 	t.ok((await got(`${http.url}/httpToHttps`, {rejectUnauthorized: false})).body);
 });
 
+test('redirects works with lowercase method', async t => {
+	const body = (await got(`${s.url}/relative`, {method: 'head'})).body;
+	t.is(body, '');
+});
+
 test.after('cleanup', async () => {
 	await http.close();
 	await https.close();