Enable Phone Number Search Tests (Azure#20604)

Co-authored-by: Minnie Liu <[email protected]>

Author: minnieliu

sdk/communication/Azure.Communication.PhoneNumbers/tests/PhoneNumbersClient/PhoneNumbersClientLiveTests.cs

@@ -132,9 +132,6 @@ public async Task CreateSearchWithNullCountryCode()
         [AsyncOnly]
         public async Task CreateSearchAsync()
         {
-            if (SkipPhoneNumberLiveTests)
-                Assert.Ignore("Skip phone number live tests flag is on.");
-
             var client = CreateClient();
             var searchOperation = await client.StartSearchAvailablePhoneNumbersAsync("US", PhoneNumberType.TollFree, PhoneNumberAssignmentType.Application,
                 new PhoneNumberCapabilities(PhoneNumberCapabilityType.Outbound, PhoneNumberCapabilityType.None));
@@ -153,9 +150,6 @@ public async Task CreateSearchAsync()
         [SyncOnly]
         public void CreateSearch()
         {
-            if (SkipPhoneNumberLiveTests)
-                Assert.Ignore("Skip phone number live tests flag is on.");
-
             var client = CreateClient();
             var searchOperation = client.StartSearchAvailablePhoneNumbers("US", PhoneNumberType.TollFree, PhoneNumberAssignmentType.Application,
                 new PhoneNumberCapabilities(PhoneNumberCapabilityType.Outbound, PhoneNumberCapabilityType.None));