Deprecate OMP from nuget pipeline (release:1.7) (#6671)
* deprecate OMP from nuget
* remove omp build
* remove
* add openmp build
* add variants
* rename package
* move GPU to no omp pipeline
* reset path
* switch to abs path
* reset path
* add cpu package
* remove obsolete name
* set package name
Co-authored-by: Randy Shuai <rashuai@microsoft.com>
