Base: Remove System Monitor and Assistant from quick launch bar

System Monitor can already be accessed quickly by clicking one of the
resource graph applets in the task bar, so this icon was redundant.

Assistant can be opened with the Super+Space hotkey, so we don't need a
dedicated icon for it.

Base/home/anon/.config/Taskbar.ini

@@ -1,7 +1,5 @@
 [QuickLaunch]
 Browser=Browser.af
-SystemMonitor=SystemMonitor.af
 Terminal=Terminal.af
 FileManager=FileManager.af
 TextEditor=TextEditor.af
-Assistant=Assistant.af