remove pyxtal_test

Author: qzhu2017

doc/COMMAND_MODE.rst

@@ -6,7 +6,6 @@ They include:
 
 - ``Pyxtal_main.py``: a tool to generate atomic/molecular crystals
 - ``Pyxtal_symmetry.py``: a tool to access the symmetry information
-- ``Pyxtal_test.py``: a tool to test all modules
 
 After a successfull `installation <Installation.html>`_, all of them can be accessed by invoking the ``-h`` command:
 
@@ -55,8 +54,6 @@ After a successfull `installation <Installation.html>`_, all of them can be acce
 
 
 
-Among them, ``pyxtal_test.py`` is mainly used for the internal test. In the following, we explain the rest utilites in detail.
-   
 PyXtal_symmetry utility
 ------------------------
 ``PyXtal_symmetry.py`` is a utility to handle the generation of moelcular crystals.

setup.py

@@ -35,7 +35,6 @@
     },
     scripts=[
         "scripts/pyxtal_main.py",
-        "scripts/pyxtal_test.py",
         "scripts/pyxtal_symmetry.py",
     ],
     classifiers=[