fix not memsetting in release mode (yikes)

include/UnixCompat.h

@@ -12,8 +12,9 @@
 #include <unistd.h>
 
 // ZeroMemory is just a {0} or a memset(addr, 0, len), and it's a macro on MSVC
-inline void ZeroMemory(void* dst, size_t len) {
-    Assert(std::memset(dst, 0, len) != nullptr);
+inline void ZeroMemory([[maybe_unused]] void* dst, [[maybe_unused]] size_t len) {
+    auto res = std::memset(dst, 0, len);
+    Assert(res != nullptr);
 }
 // provides unix equivalent of closesocket call in win32
 inline void CloseSocketProper(int socket) {