manager: no need to call .get() on shared_ptr

daemon/src/managerimpl.cpp

@@ -2127,7 +2127,7 @@ bool ManagerImpl::startRecordedFilePlayback(const std::string& filepath)
 
         try {
             audiofile_.reset(new WaveFile(filepath, sampleRate));
-            audiofile_.get()->setIsRecording(true);
+            audiofile_->setIsRecording(true);
         } catch (const AudioFileException &e) {
             ERROR("Exception: %s", e.what());
         }