diff --git a/include/grpc/impl/codegen/port_platform.h b/include/grpc/impl/codegen/port_platform.h
index 5784fcee4c7..dc5a6ea6e56 100644
--- a/include/grpc/impl/codegen/port_platform.h
+++ b/include/grpc/impl/codegen/port_platform.h
@@ -306,13 +306,6 @@
 #define GPR_PTHREAD_TLS 1
 #endif //!defined(ABSL_HAVE_TLS) && defined(GPR_GCC_TLS)
 
-// cpu_posix.cc depends on TLS and cpu_linux.cc doesn't.
-#if !defined(GPR_GCC_TLS) && defined(GPR_CPU_POSIX)
-#undef GPR_CPU_POSIX
-#define GPR_CPU_LINUX 1
-#endif  //! defined(GPR_GCC_TLS) && defined(GPR_CPU_POSIX)
-#endif // defined(__ANDROID__) && defined(__clang__)
-
 #if defined(__has_include)
 #if __has_include(<atomic>)
 #define GRPC_HAS_CXX11_ATOMIC