pw_presubmit: remove modified file list

Change-Id: I83cc85e0b529938352f3ca1c6817fcac7ec31776
diff --git a/pw_presubmit/py/pw_presubmit/presubmit.py b/pw_presubmit/py/pw_presubmit/presubmit.py
index dd65aee..de12e80 100644
--- a/pw_presubmit/py/pw_presubmit/presubmit.py
+++ b/pw_presubmit/py/pw_presubmit/presubmit.py
@@ -219,8 +219,6 @@
             print(line)
         print()
 
-        _LOG.debug('Paths, relative to %s:\n%s', self._root,
-                   '\n'.join(p.as_posix() for p in self._relative_paths))
         if not self._paths:
             print(color_yellow('No files are being checked!'))