test: replace fixturesdir use common.fixtures

Author: pauljohnberry

test/parallel/test-http2-respond-file-fd.js

@@ -1,6 +1,7 @@
 'use strict';
 
 const common = require('../common');
+const fixtures = require('../common/fixtures');
 if (!common.hasCrypto)
   common.skip('missing crypto');
 const http2 = require('http2');
@@ -13,7 +14,8 @@ const {
   HTTP2_HEADER_CONTENT_LENGTH
 } = http2.constants;
 
-const fname = path.resolve(common.fixturesDir, 'elipses.txt');
+const fname = path.resolve(fixtures.fixturesDir, 'elipses.txt');
+
 const data = fs.readFileSync(fname);
 const stat = fs.statSync(fname);
 const fd = fs.openSync(fname, 'r');