[netinstall] Remove unused m_jobs

- Netinstall doesn't make any jobs itself, so drop the member variable
- Use type alias, and simplify jobs()

src/modules/netinstall/NetInstallViewStep.cpp

@@ -111,10 +111,10 @@ NetInstallViewStep::isAtEnd() const
 }
 
 
-QList< Calamares::job_ptr >
+Calamares::JobList
 NetInstallViewStep::jobs() const
 {
-    return m_jobs;
+    return Calamares::JobList();
 }
 
 

src/modules/netinstall/NetInstallViewStep.h

@@ -47,7 +47,7 @@ public:
     bool isAtBeginning() const override;
     bool isAtEnd() const override;
 
-    QList< Calamares::job_ptr > jobs() const override;
+    Calamares::JobList jobs() const override;
 
     void onActivate() override;
 
@@ -63,7 +63,6 @@ private:
     NetInstallPage* m_widget;
     bool m_nextEnabled;
     CalamaresUtils::Locale::TranslatedString* m_sidebarLabel;  // As it appears in the sidebar
-    QList< Calamares::job_ptr > m_jobs;
 };
 
 CALAMARES_PLUGIN_FACTORY_DECLARATION( NetInstallViewStepFactory )