Revert "Fix //testing import lint issues"

This reverts commit a418670f47e2a8bb3a2ce69e990203eb69b5225f.

Reason for revert: Causing ModuleNotFoundError: No module named 'skia_gold_common' errors on gardened builders


Original change's description:
> Fix //testing import lint issues
>
> Removes the import-related entries from //testing's pylintrc file and
> fixes resulting lint errors.
>
> Bug: 353942917
> Change-Id: Ie3b3dba795e0806631c37243a3b4f480a4215a6e
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5737567
> Auto-Submit: Brian Sheedy <[email protected]>
> Commit-Queue: Brian Sheedy <[email protected]>
> Reviewed-by: Ben Pastene <[email protected]>
> Cr-Commit-Position: refs/heads/main@{#1337485}

Bug: 353942917
Change-Id: Ic27cddfc5fda700b5898c3681af18f42fd1222fa
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5763726
Commit-Queue: Noah Rose Ledesma <[email protected]>
Bot-Commit: Rubber Stamper <[email protected]>
Owners-Override: Noah Rose Ledesma <[email protected]>
Reviewed-by: Brian Sheedy <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1337552}
diff --git a/testing/merge_scripts/standard_gtest_merge_test.py b/testing/merge_scripts/standard_gtest_merge_test.py
index 05ea01f..e39fe9c9 100755
--- a/testing/merge_scripts/standard_gtest_merge_test.py
+++ b/testing/merge_scripts/standard_gtest_merge_test.py
@@ -7,14 +7,21 @@
 import logging
 import os
 import shutil
+import six
 import sys
 import tempfile
 import unittest
-from unittest import mock
-
-import six
 
 import common_merge_script_tests
+import six
+
+THIS_DIR = os.path.dirname(os.path.abspath(__file__))
+
+# For 'standard_gtest_merge.py'.
+sys.path.insert(0, os.path.abspath(os.path.join(THIS_DIR, '..', 'resources')))
+
+import mock
+
 import standard_gtest_merge
 
 # gtest json output for successfully finished shard #0.