Remove unused api gw log level test

lib/plugins/aws/package/compile/events/apiGateway/lib/hack/updateStage.test.js

@@ -8,11 +8,7 @@ const sinon = require('sinon');
 const _ = require('lodash');
 const Serverless = require('../../../../../../../../Serverless');
 const AwsProvider = require('../../../../../../provider/awsProvider');
-const {
-  updateStage,
-  apiGatewayValidLogLevels,
-  defaultApiGatewayLogLevel,
-} = require('./updateStage');
+const { updateStage, defaultApiGatewayLogLevel } = require('./updateStage');
 
 chai.use(require('sinon-chai'));
 chai.use(require('chai-as-promised'));
@@ -677,7 +673,7 @@ describe('#updateStage()', () => {
     return checkLogLevel(null, defaultApiGatewayLogLevel);
   });
 
-  apiGatewayValidLogLevels.forEach(logLevel => {
+  ['INFO', 'ERROR'].forEach(logLevel => {
     it(`should update the stage with a custom APIGW log level if given ${logLevel}`, () => {
       return checkLogLevel(logLevel, logLevel);
     });
@@ -695,16 +691,6 @@ describe('#updateStage()', () => {
     });
   });
 
-  it('should reject a custom APIGW log level if value is invalid', () => {
-    context.state.service.provider.logs = {
-      restApi: {
-        level: 'INVALID',
-      },
-    };
-
-    return expect(updateStage.call(context)).to.be.rejectedWith('invalid value');
-  });
-
   it('should disable existing access log settings when accessLogging is set to false', () => {
     context.state.service.provider.logs = {
       restApi: {