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

scripts/slave/recipes/android/perf.expected/provision_devices.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/bot_update.py",
       "--master",
       "chromium.perf",
       "--builder",
       "Android Nexus5 Perf (1)",
@@ skipping 167 matching lines @@
       "[SLAVE_BUILD]/src/out/build_product.zip"
     ],
     "cwd": "[SLAVE_BUILD]/src",
     "name": "unzip_build_product"
   },
   {
     "cmd": [
       "[BUILD]/scripts/slave/daemonizer.py",
       "--",
       "[SLAVE_BUILD]/src/build/android/adb_logcat_monitor.py",
-      "[SLAVE_BUILD]/src/out/logcat_dir"
+      "[SLAVE_BUILD]/src/out/logcat"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
     "name": "spawn_logcat_monitor"
   },
   {
     "cmd": [
       "python",
@@ skipping 144 matching lines @@
       "step returned non-zero exit code: 1",
       "@@@STEP_EXCEPTION@@@"
     ]
   },
   {
     "name": "$result",
     "reason": "Infra Failure: Step('provision_devices') returned 1",
     "status_code": 1
   }
 ]