Revert "[Android] Add context manager to record logcat during step(s)."

scripts/slave/recipes/android_webview_cts_tests.py

Index: scripts/slave/recipes/android_webview_cts_tests.py
diff --git a/scripts/slave/recipes/android_webview_cts_tests.py b/scripts/slave/recipes/android_webview_cts_tests.py
index cc626110a29052ab899a685ba42f821a0b3f177e..4b92c3c0abea5bbd4c6fc5c402454af6b78b376a 100644
--- a/scripts/slave/recipes/android_webview_cts_tests.py
+++ b/scripts/slave/recipes/android_webview_cts_tests.py
@@ -131,9 +131,8 @@ def RunSteps(api):
             [['unexpected failures:', unexpected_test_failures],
              ['not executed:', not_executed_tests]]))
 
-  logcat_file = api.chromium.output_dir.join('full_logcat')
-  api.chromium_android.logcat_dump(output_logcat_file=logcat_file)
-  api.chromium_android.stack_tool_steps(logcat_file=logcat_file)
+  api.chromium_android.logcat_dump()
+  api.chromium_android.stack_tool_steps()
   api.chromium_android.test_report()
 
   if unexpected_test_failures: