Don't delete in-use credInfo.

Bug: https://jira.iotivity.org/browse/IOT-2828
Change-Id: Iac85f39806857767bbc6f5dcab02057f791bb5bc
Signed-off-by: Todd Malsbary <todd.malsbary@intel.com>

resource/csdk/security/provisioning/src/secureresourceprovider.c

@@ -516,7 +516,7 @@ static OCStackApplicationResult ProvisionCredentialDosCB1(void *ctx, OCDoHandle
                 res = ProvisionLocalCredential(ctx, credInfo);
             }
 
-            if ((NULL != deviceInfo) || (OC_STACK_OK != res))
+            if (OC_STACK_OK != res)
             {
                 DeleteCredList(credInfo);
             }