auto_bisect: fix path for checking DEPS

scripts/slave/recipes/bisection/android_bisect.expected/basic_android_one_perf_bisect.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "\nimport sys, os\npath = sys.argv[1]\nmode = int(sys.argv[2])\nif not os.path.isdir(path):\n  if os.path.exists(path):\n    print \"%s exists but is not a dir\" % path\n    sys.exit(1)\n  os.makedirs(path, mode)\n",
       "[BUILDER_CACHE]/android_one_perf_bisect",
       "511"
     ],
     "name": "makedirs checkout path",
@@ skipping 447 matching lines @@
       "--build-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"buildername\": \"android_one_perf_bisect\", \"buildnumber\": 571, \"is_test\": true, \"issue\": \"12345\", \"mastername\": \"tryserver.chromium.perf\", \"patch_project\": \"chromium\", \"patch_storage\": \"rietveld\", \"patchset\": \"20001\", \"path_config\": \"kitchen\", \"project\": \"chrome\", \"recipe\": \"bisection/android_bisect\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": \"HEAD\", \"rietveld\": \"https://codereview.chromium.org\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}"
     ],
     "cwd": "[BUILDER_CACHE]/android_one_perf_bisect",
     "name": "Running Bisection"
   },
   {
     "cmd": [
       "python",
       "-u",
-      "\nimport sys, os\npath = sys.argv[1]\nmode = int(sys.argv[2])\nif not os.path.isdir(path):\n  if os.path.exists(path):\n    print \"%s exists but is not a dir\" % path\n    sys.exit(1)\n  os.makedirs(path, mode)\n",
-      "[BUILDER_CACHE]/android_one_perf_bisect",
-      "511"
-    ],
-    "cwd": "[BUILDER_CACHE]/android_one_perf_bisect",
-    "name": "makedirs checkout path (2)",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@python.inline@@@@",
-      "@@@STEP_LOG_LINE@python.inline@import sys, os@@@",
-      "@@@STEP_LOG_LINE@python.inline@path = sys.argv[1]@@@",
-      "@@@STEP_LOG_LINE@python.inline@mode = int(sys.argv[2])@@@",
-      "@@@STEP_LOG_LINE@python.inline@if not os.path.isdir(path):@@@",
-      "@@@STEP_LOG_LINE@python.inline@  if os.path.exists(path):@@@",
-      "@@@STEP_LOG_LINE@python.inline@    print \"%s exists but is not a dir\" % path@@@",
-      "@@@STEP_LOG_LINE@python.inline@    sys.exit(1)@@@",
-      "@@@STEP_LOG_LINE@python.inline@  os.makedirs(path, mode)@@@",
-      "@@@STEP_LOG_END@python.inline@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
       "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
       "--master",
       "tryserver.chromium.perf",
       "--builder",
       "android_one_perf_bisect",
       "--slave",
       "TestSlavename",
       "--spec",
       "cache_dir = '[GIT_CACHE]'\nsolutions = [{'custom_vars': {'googlecode_url': 'svn://svn-mirror.golo.chromium.org/%s', 'llvm_url': 'svn://svn-mirror.golo.chromium.org/llvm-project', 'nacl_trunk': 'svn://svn-mirror.golo.chromium.org/native_client/trunk', 'sourceforge_url': 'svn://svn-mirror.golo.chromium.org/%(repo)s', 'webkit_trunk': 'svn://svn-mirror.golo.chromium.org/blink/trunk'}, 'deps_file': 'DEPS', 'managed': False, 'name': 'src', 'url': 'svn://svn-mirror.golo.chromium.org/chrome/trunk/src'}, {'custom_deps': {'src/chrome/test/data/firefox2_profile/searchplugins': None, 'src/chrome/test/data/firefox2_searchplugins': None, 'src/chrome/test/data/firefox3_profile/searchplugins': None, 'src/chrome/test/data/firefox3_searchplugins': None, 'src/chrome/test/data/osdd': None, 'src/chrome/test/data/perf/frame_rate/private': None, 'src/chrome/test/data/plugin': None, 'src/chrome/test/data/ssl/certs': None, 'src/data/autodiscovery': None, 'src/data/esctf': None, 'src/data/mach_ports': None, 'src/data/memory_test': None, 'src/data/mozilla_js_tests': None, 'src/data/selenium_core': None, 'src/data/tab_switching': None, 'src/tools/grit/grit/test/data': None, 'src/webkit/data/bmp_decoder': None, 'src/webkit/data/ico_decoder': None, 'src/webkit/data/test_shell/plugins': None, 'src/webkit/data/xbm_decoder': None}, 'deps_file': 'DEPS', 'managed': False, 'name': 'src-internal', 'url': 'svn://svn-mirror.golo.chromium.org/chrome-internal/trunk/src-internal'}]\ntarget_os = ['android']",
       "--root",
@@ skipping 204 matching lines @@
       "@@@STEP_LOG_LINE@python.inline@  os.remove(report)@@@",
       "@@@STEP_LOG_END@python.inline@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]