Revert "BaseTools:code of test python module is moved to edksetup"

This reverts commit df7c81b5b2.

In commint df7c81b5b219c9,used a function to test python module
But the Boolean value of the return value of this function is the
opposite of the Correct result, resulting in an unexpected result

Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Zhiju.Fan <zhijux.fan@intel.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>

BaseTools/Tests/RunTests.py

@@ -12,6 +12,14 @@
 import os
 import sys
 import unittest
+
+try:
+    import distutils.util
+except ModuleNotFoundError:
+    sys.exit('''
+Python reported: "No module named 'distutils.util"
+''')
+
 import TestTools
 
 def GetCTestSuite():