Revert "WORKAROUND: Do not use slab heap while we track down issues with resource management."

This reverts commit f2c26443f85a3c3fd43137509368ba5c7ab80ee7.

src/core/hle/kernel/slab_helpers.h

@@ -67,11 +67,11 @@ class KAutoObjectWithSlabHeapAndContainer : public Base {
 
 private:
     static Derived* Allocate(KernelCore& kernel) {
-        return new Derived(kernel);
+        return kernel.SlabHeap<Derived>().AllocateWithKernel(kernel);
     }
 
     static void Free(KernelCore& kernel, Derived* obj) {
-        delete obj;
+        kernel.SlabHeap<Derived>().Free(obj);
     }
 
 public: