test/integration/goDebug.test.ts: remove '.only' from test

There was a .only mistakenly left in the code from testing.

Change-Id: Ied126bb4592f77fcdcea5cdf81e23770c37942d8
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/307052
Trust: Suzy Mueller <suzmue@golang.org>
Run-TryBot: Suzy Mueller <suzmue@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
diff --git a/test/integration/goDebug.test.ts b/test/integration/goDebug.test.ts
index 7a0e745..42c163e 100644
--- a/test/integration/goDebug.test.ts
+++ b/test/integration/goDebug.test.ts
@@ -1637,7 +1637,7 @@
 			]);
 		}
 
-		test.only('next', async function () {
+		test('next', async function () {
 			if (!isDlvDap) {
 				// Not implemented in the legacy adapter.
 				this.skip();