Base: Remove memory::DeallocationType::kDecommitRelease (an invalid combination)

src/xenia/base/memory.h

@@ -45,7 +45,6 @@ enum class AllocationType {
 enum class DeallocationType {
   kRelease = 1 << 0,
   kDecommit = 1 << 1,
-  kDecommitRelease = kRelease | kDecommit,
 };
 
 // Allocates a block of memory at the given page-aligned base address.

src/xenia/base/memory_win.cc

@@ -97,13 +97,11 @@ bool DeallocFixed(void* base_address, size_t length,
   switch (deallocation_type) {
     case DeallocationType::kRelease:
       free_type = MEM_RELEASE;
+      length = 0;
       break;
     case DeallocationType::kDecommit:
       free_type = MEM_DECOMMIT;
       break;
-    case DeallocationType::kDecommitRelease:
-      free_type = MEM_RELEASE | MEM_DECOMMIT;
-      break;
     default:
       assert_unhandled_case(deallocation_type);
       break;