Removed unnecessary initialisation of activity pointer

git-svn-id: https://svn.inf.ethz.ch/svn/lecturers/a2/trunk@6562 8c9fc860-2736-0410-a75d-ab315db34111

source/BIOS.Environment.Mod

@@ -315,7 +315,6 @@ END GetInit;
 PROCEDURE Initialize-;
 CONST Channel0 = 0; RateGenerator = 4;
 BEGIN {UNCOOPERATIVE, UNCHECKED}
-	SYSTEM.SetActivity (NIL);
 	CPU.Initialize;
 	ACPI.Initialize;
 	Timer.Initialize;

source/RPI.Environment.Mod

@@ -151,7 +151,7 @@ END InitMemory;
 
 PROCEDURE Initialize-;
 BEGIN {UNCOOPERATIVE, UNCHECKED}
-	SYSTEM.SetActivity (NIL); LED (TRUE);
+	LED (TRUE);
 	CPU.Initialize; InitTrace; InitMemory;
 	frequency := Timer.GetFrequency () DIV 1000;
 END Initialize;