Excise cros_logging module

Replace all usages of chromite.lib.cros_logging with the stdlib logging
module.

BUG=b:191490453
TEST=None

Change-Id: I824597445378fd9b0a9659944081d6e179778b2b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/touch_firmware_test/+/3162317
Tested-by: Chris McDonald <cjmcdonald@chromium.org>
Auto-Submit: Chris McDonald <cjmcdonald@chromium.org>
Reviewed-by: Sean O'Brien <seobrien@chromium.org>
Reviewed-by: Alex Klein <saklein@chromium.org>
Commit-Queue: Chris McDonald <cjmcdonald@chromium.org>
diff --git a/heatmap/heatmapplot.py b/heatmap/heatmapplot.py
index 7569941..ae61a84 100755
--- a/heatmap/heatmapplot.py
+++ b/heatmap/heatmapplot.py
@@ -14,8 +14,8 @@
 """
 
 from __future__ import print_function
-from chromite.lib import cros_logging as logging
 import argparse
+import logging
 import os
 import re
 import subprocess