Enable readability-container-size-empty tests

This one is a little trivial, but it does help in readability.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: I5366d4eec8af2f781b3bad804131ae2eb806e3aa
diff --git a/include/openbmc_dbus_rest.hpp b/include/openbmc_dbus_rest.hpp
index abcec1a..9233a27 100644
--- a/include/openbmc_dbus_rest.hpp
+++ b/include/openbmc_dbus_rest.hpp
@@ -1562,7 +1562,7 @@
             const boost::system::error_code ec,
             const std::vector<std::pair<std::string, std::vector<std::string>>>&
                 interfaceNames) {
-            if (ec || interfaceNames.size() <= 0)
+            if (ec || interfaceNames.empty())
             {
                 BMCWEB_LOG_ERROR << "Can't find object";
                 setErrorResponse(transaction->res,
@@ -1596,7 +1596,7 @@
             const boost::system::error_code ec,
             const std::vector<std::pair<std::string, std::vector<std::string>>>&
                 interfaceNames) {
-            if (ec || interfaceNames.size() <= 0)
+            if (ec || interfaceNames.empty())
             {
                 BMCWEB_LOG_ERROR << "Can't find object";
                 setErrorResponse(asyncResp->res,
@@ -1701,7 +1701,7 @@
     crow::connections::systemBus->async_method_call(
         [asyncResp, path, propertyName](const boost::system::error_code ec,
                                         const GetObjectType& objectNames) {
-            if (ec || objectNames.size() <= 0)
+            if (ec || objectNames.empty())
             {
                 setErrorResponse(asyncResp->res,
                                  boost::beast::http::status::not_found,
@@ -1718,7 +1718,7 @@
                 const std::vector<std::string>& interfaceNames =
                     connection.second;
 
-                if (interfaceNames.size() <= 0)
+                if (interfaceNames.empty())
                 {
                     setErrorResponse(asyncResp->res,
                                      boost::beast::http::status::not_found,
@@ -1875,7 +1875,7 @@
     crow::connections::systemBus->async_method_call(
         [transaction](const boost::system::error_code ec2,
                       const GetObjectType& objectNames) {
-            if (!ec2 && objectNames.size() <= 0)
+            if (!ec2 && objectNames.empty())
             {
                 setErrorResponse(transaction->asyncResp->res,
                                  boost::beast::http::status::not_found,