Remove @AwaitsFix from testShrinkActionInPolicyWithoutHotPhase

This test was muted, got fixed, and then was muted again but the issue
wasn't reopened (by accident it seems). Since that was 4 years ago, I'm
going to unmute this test and if it's still an issue, the new test
automation will open a new issue for it using the current muting
mechanism.

Relates #70595

Author: nielsbauman

x-pack/plugin/ilm/qa/multi-node/src/javaRestTest/java/org/elasticsearch/xpack/ilm/TimeSeriesDataStreamsIT.java

@@ -123,7 +123,6 @@ public void testRolloverIsSkippedOnManualDataStreamRollover() throws Exception {
         );
     }
 
-    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/70595")
     public void testShrinkActionInPolicyWithoutHotPhase() throws Exception {
         createNewSingletonPolicy(client(), policyName, "warm", new ShrinkAction(1, null, false));
         createComposableTemplate(client(), template, dataStream + "*", getTemplate(policyName));