ProjectExplorer: Split up the IOutputParser class

For symmetry with Utils::OutputFormatter.

Task-number: QTCREATORBUG-22665
Change-Id: I148fed69dba042ad3ef26e080829c31cd3f357fd
Reviewed-by: hjk <hjk@qt.io>

src/plugins/qbsprojectmanager/qbscleanstep.h

@@ -66,7 +66,6 @@ private:
     QString m_description;
     int m_maxProgress;
     bool m_showCompilerOutput = true;
-    ProjectExplorer::IOutputParser *m_parser = nullptr;
 };
 
 class QbsCleanStepFactory : public ProjectExplorer::BuildStepFactory

src/plugins/qbsprojectmanager/qbsinstallstep.h

@@ -80,7 +80,6 @@ private:
     QbsSession *m_session = nullptr;
     QString m_description;
     int m_maxProgress;
-    ProjectExplorer::IOutputParser *m_parser = nullptr;
 
     friend class QbsInstallStepConfigWidget;
 };