Remove deprecated HIP flags (#102271)
Removes the outdated HIP flags appended to HIP_CXX_FLAGS
The will help remove the following warnings in the pytorch build log
```
[6238/6889] Building CXX object caffe2/CMakeFiles/torch_hip.dir/__/aten/src/ATen/native/cudnn/hip/Conv_v8.cpp.o
cc1plus: warning: command line option ‘-Wno-duplicate-decl-specifier’ is valid for C/ObjC but not for C++
cc1plus: warning: unrecognized command line option ‘-Wno-unused-command-line-argument’
cc1plus: warning: unrecognized command line option ‘-Wno-exceptions’
cc1plus: warning: unrecognized command line option ‘-Wno-inconsistent-missing-override’
cc1plus: warning: unrecognized command line option ‘-Wno-macro-redefined’
```
This also updates the gloo submodule commit to include the similar change made to gloo.
https://github.com/facebookincubator/gloo/commit/597accfd79f5b0f9d57b228dec088ca996686475
Pull Request resolved: https://github.com/pytorch/pytorch/pull/102271
Approved by: https://github.com/malfet
