kern: implement unsuspension of init threads

libraries/libmesosphere/source/arch/arm64/kern_k_supervisor_page_table.cpp

@@ -39,14 +39,6 @@ namespace ams::kern::arch::arm64 {
         }
     }
 
-    void KSupervisorPageTable::Activate() {
-        /* Initialize, using process id = 0xFFFFFFFF */
-        this->page_table.Initialize(0xFFFFFFFF);
-
-        /* Invalidate entire TLB. */
-        cpu::InvalidateEntireTlb();
-    }
-
     void KSupervisorPageTable::Finalize(s32 core_id) {
         MESOSPHERE_TODO_IMPLEMENT();
     }