core: hle: kernel: KPageTable: ResetTransferMemory: Various cleanup.

src/core/hle/kernel/k_page_table.cpp

@@ -799,8 +799,7 @@ ResultCode KPageTable::ResetTransferMemory(VAddr addr, std::size_t size) {
 
     KMemoryState state{};
 
-    CASCADE_CODE(
-        CheckMemoryState(&state, nullptr, nullptr, nullptr, addr, size,
+    R_TRY(CheckMemoryState(&state, nullptr, nullptr, nullptr, addr, size,
                            KMemoryState::FlagCanTransfer | KMemoryState::FlagReferenceCounted,
                            KMemoryState::FlagCanTransfer | KMemoryState::FlagReferenceCounted,
                            KMemoryPermission::None, KMemoryPermission::None, KMemoryAttribute::Mask,