Get rid of tautological check (#225)

Summary:
`daemonConfigLoaderFactory` is a function and therefore always non-null

Fixes following clang warning:
```
../third_party/kineto/libkineto/src/ConfigLoader.cpp:161:7: warning: address of function 'daemonConfigLoaderFactory' will always evaluate to 'true' [-Wpointer-bool-conversion]
  if (daemonConfigLoaderFactory && daemonConfigLoaderFactory()) {
      ^~~~~~~~~~~~~~~~~~~~~~~~~ ~~
```

Pull Request resolved: #225

Reviewed By: ilia-cher

Differential Revision: D28405389

Pulled By: malfet

fbshipit-source-id: 3930ab1acd6f2909602eada246d9ad01d9a923e3

Author: malfet

libkineto/src/ConfigLoader.cpp

@@ -158,7 +158,7 @@ ConfigLoader::ConfigLoader(LibkinetoApi& api)
   config_.parse(readConfigFromConfigFile(configFileName_));
   SET_LOG_VERBOSITY_LEVEL(config_.verboseLogLevel(), config_.verboseLogModules());
   setupSignalHandler(config_.sigUsr2Enabled());
-  if (daemonConfigLoaderFactory && daemonConfigLoaderFactory()) {
+  if (daemonConfigLoaderFactory()) {
     daemonConfigLoader_ = daemonConfigLoaderFactory()();
     daemonConfigLoader_->setCommunicationFabric(config_.ipcFabricEnabled());
   }