fix clang-tidy warnings with unreachable returns

```
/data0/jenkins/workspace/ci-repository/openbmc/bmcweb/http/verb.hpp:51:12: error: 'return' will never be executed [clang-diagnostic-unreachable-code-return,-warnings-as-errors]
/data0/jenkins/workspace/ci-repository/openbmc/bmcweb/http/utility.hpp:99:12: error: 'return' will never be executed [clang-diagnostic-unreachable-code-return,-warnings-as-errors]
/data0/jenkins/workspace/ci-repository/openbmc/bmcweb/redfish-core/include/utils/query_param.hpp:272:13: error: 'break' will never be executed [clang-diagnostic-unreachable-code-break,-warnings-as-errors]
```

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ia74f4fb4f34875097d1ef04b26e40908cc175088