Remove CMAKE_CXX_STANDARD 17

* reason: gtest can't be used with C++17. Arrow project doesn't support C++ 17 yet.

Author: alinaliBQ

.github/workflows/cpp_windows.yml

@@ -64,7 +64,6 @@ jobs:
       ARROW_WITH_ZLIB: ON
       ARROW_WITH_ZSTD: ON
       BOOST_SOURCE: BUNDLED
-      CMAKE_CXX_STANDARD: "17"
       CMAKE_GENERATOR: Ninja
       CMAKE_INSTALL_PREFIX: /usr
       CMAKE_UNITY_BUILD: ON