[lit] Avoid global imports in module declaration

A previous attempt to cleanup module imports broke installing via
pip/setup.py [1].  This should be fixed now.

[1] cf25224

Reviewed By: paquette

Differential Revision: https://reviews.llvm.org/D76940

Author: Julian Lettner

llvm/utils/lit/lit/__init__.py

@@ -6,4 +6,3 @@
 __version__ = '.'.join(str(v) for v in __versioninfo__) + 'dev'
 
 __all__ = []
-from .main import main

llvm/utils/lit/setup.py

@@ -71,7 +71,7 @@
     packages = find_packages(),
     entry_points = {
         'console_scripts': [
-            'lit = lit:main',
+            'lit = lit.main:main',
             ],
         }
 )