Unify to use one function of asTensorShape() and asTensorInfo() (#2471)

Unify to use one function of asTensorShape() and asTensorInfo() (#2471)

* Unify to use one function of asTensorShape() and asTensorInfo()

This commit unifies to use one function(no overloading) of asTensorShape() and asTensorInfo().
- Export asTensorShape() out of asTensorInfo() to apply conditionally dimension correction.
- Unify to use one function to eliminate unnecessary complexity.

Signed-off-by: jiseob.jang <jiseob.jang@samsung.com>
* Remove unused overloading functions

This commit remove unused overloading functions.
 - asTensorInfo()
 - asTensorShape()

Signed-off-by: jiseob.jang <jiseob.jang@samsung.com>