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

scripts/slave/recipes/android_webview_aosp_perf.py

Index: scripts/slave/recipes/android_webview_aosp_perf.py
diff --git a/scripts/slave/recipes/android_webview_aosp_perf.py b/scripts/slave/recipes/android_webview_aosp_perf.py
index 1e03785899692a4cb85cf01dbb34715deb45315e..b97d7f2530390ec0c4121cb09b92239d1fc9cfd6 100644
--- a/scripts/slave/recipes/android_webview_aosp_perf.py
+++ b/scripts/slave/recipes/android_webview_aosp_perf.py
@@ -77,9 +77,8 @@ def RunSteps(api):
       chartjson_file=True,
       perf_id=BUILDER['perf_id'])
   finally:
-    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()