* remove emtpy kernel and infershape in fluid

* fix bug of infershape_utils

* rename pten dir to phi

* rename namespace to phi

* rename infrt pten dir to phi

* resolve conflict

* rename pten to phi in cmake

* revert all infrt change

* change needed files

* fix infrt failed

* fix inference failed

* Unify paddle/pten::framework::ddim into pten::ddim

* fix paddle namespace

* compile sucessfully

* fix npu src file

* fix conflict

* fix conflict

* fix tensorrt compiler error

* fix conflict

* fix conflict

* fix tesst file conflict

* fix conflict

* fix mlu file conflict

* fix mlu file conflict

* fix cinn header file conflict

* fix conflict

* fix conflict

* fix conflict

* fix conflict

* update forward argument mapping

* fix compile failed

* fix test failed

* add empty and empty_like kernel in pten

* add empty dev_api

and optimize the c++ implmentation of empty op as PR#26659 reviews,
and add bool for shape op.