Reenable azure repository tests and remove some randomization in http servers (#48283)

Relates #47948
Relates #47380

Author: tlrx

plugins/repository-azure/src/test/java/org/elasticsearch/repositories/azure/AzureBlobStoreRepositoryTests.java

@@ -265,10 +265,4 @@ protected String requestUniqueId(final HttpExchange exchange) {
                 + (range != null ? " " + range : "");
         }
     }
-
-    @Override
-    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/47948")
-    public void testIndicesDeletedFromRepository() throws Exception {
-
-    }
 }

test/framework/src/main/java/org/elasticsearch/repositories/blobstore/ESMockAPIBasedRepositoryIntegTestCase.java

@@ -157,7 +157,7 @@ public void handle(final HttpExchange exchange) throws IOException {
 
             final boolean canFailRequest = canFailRequest(exchange);
             final int count = requests.computeIfAbsent(requestId, req -> new AtomicInteger(0)).incrementAndGet();
-            if (count >= maxErrorsPerRequest || canFailRequest == false || randomBoolean()) {
+            if (count >= maxErrorsPerRequest || canFailRequest == false) {
                 requests.remove(requestId);
                 delegate.handle(exchange);
             } else {