Remove wrong copy-paste code in test (#16695)

NE-SmallTown · Sunil Pai · commit 9444c876d573 · 2019-09-09T11:34:08.000+01:00
diff --git a/packages/react-dom/src/__tests__/ReactDOMFiberAsync-test.internal.js b/packages/react-dom/src/__tests__/ReactDOMFiberAsync-test.internal.js
@@ -474,8 +474,7 @@ describe('ReactDOMFiberAsync', () => {
                 }
                 ref={submitButtonRef}>
                 Submit
-              </button>{' '}
-              : null}
+              </button>
             </div>
           );
         }

Original file line number	Diff line number	Diff line change
`@@ -474,8 +474,7 @@ describe('ReactDOMFiberAsync', () => {`
`474`	`474`	`}`
`475`	`475`	`ref={submitButtonRef}>`
`476`	`476`	`Submit`
`477`		`- </button>{' '}`
`478`		`- : null}`
	`477`	`+ </button>`
`479`	`478`	`</div>`
`480`	`479`	`);`
`481`	`480`	`}`