CPUBackend: std::move shared_ptr where applicable

Very minor, just avoids churning reference count increments and decrements.

FEXCore/Source/Interface/Core/CPUBackend.cpp

@@ -317,7 +317,7 @@ namespace CPU {
     // Resize the code buffer and reallocate our code size
     CurrentCodeBuffer = CodeBuffers.StartLargerCodeBuffer();
 
-    RegisterForSignalHandler(PrevCodeBuffer);
+    RegisterForSignalHandler(std::move(PrevCodeBuffer));
     return CurrentCodeBuffer.get();
   }
 
@@ -326,7 +326,7 @@ namespace CPU {
       // We have signal handlers that have generated code
       // This means that we can not safely clear the code at this point in time
       // Keep a reference to the old code buffer to delay deallocation
-      SignalHandlerCodeBuffers.push_back(CodeBuffer);
+      SignalHandlerCodeBuffers.push_back(std::move(CodeBuffer));
     } else {
       SignalHandlerCodeBuffers.clear();
     }