Revert "libc-wasi: Make rights of STDIN/STDOUT/STDERR fixed and overl… #3403

Job	Run time
build_llvm_libraries / build_llvm_libraries	2m 44s
build_llvm_libraries_xtensa / build_llvm_libraries	2m 55s
spec_test_on_qemu (boards/arm/imx6/sabre-6quad/configs/nsh, thumbv7_vfp, dp, -t aot, CONFIG_INTER...	11m 14s
spec_test_on_qemu (boards/arm/imx6/sabre-6quad/configs/nsh, thumbv7_vfp, dp, -t aot -X, CONFIG_IN...	11m 2s
spec_test_on_qemu (boards/xtensa/esp32s3/esp32s3-devkit/configs/qemu_debug, xtensa, none, -t aot,...	12m 36s
spec_test_on_qemu (boards/xtensa/esp32s3/esp32s3-devkit/configs/qemu_debug, xtensa, none, -t aot ...	12m 6s
spec_test_on_qemu (boards/risc-v/qemu-rv/rv-virt/configs/nsh64, riscv64, none, -t aot, CONFIG_INT...	8m 32s
spec_test_on_qemu (boards/risc-v/qemu-rv/rv-virt/configs/nsh, riscv32, none, -t aot -X, CONFIG_IN...	8m 39s
spec_test_on_qemu (boards/risc-v/qemu-rv/rv-virt/configs/nsh, riscv32, none, -t aot, CONFIG_INTER...	8m 41s
	1h 18m 29s

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