revert: reverts a previous commit (#693)

test/parse_test.js

@@ -897,14 +897,14 @@ it('should fail on invalid examples', async function() {
 });
 
 describe('memory usage', function () {
-  it('should use this same instance of validation function in each call (use less than 150mb of memory)', async function() {
+  it('should use this same instance of validation function in each call', async function() {
     this.timeout(12500);
     const asyncapi = fs.readFileSync(path.resolve(__dirname, './good/zbos_mqtt-all-asyncapi.json'), 'utf8');
 
     for (let i = 0, l = 25; i < l; i++) {
       await parser.parse(asyncapi);
       const used = process.memoryUsage().heapUsed / 1024 / 1024;
-      expect(used < 150).to.equal(true); // less than 150 MB
+      expect(used < 100).to.equal(true); // less than 100 MB
     }
   });
 });