RecreateSKPs: Don't download and use the .boto file

infra/bots/recipes/swarm_RecreateSKPs.expected/Housekeeper-Nightly-RecreateSKPs_Canary.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",
       "[CUSTOM_/_B_WORK]",
       "511"
     ],
     "name": "makedirs checkout_path",
@@ skipping 169 matching lines @@
       "[CUSTOM_/_B_WORK]/src/out/Release",
       "chrome"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/src",
     "name": "Build Chrome"
   },
   {
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport urllib2\n\nBOTO_URL = 'http://metadata/computeMetadata/v1/project/attributes/boto-file'\n\ndest_path = '[SLAVE_BUILD]/tmp/.boto'\ndest_dir = os.path.dirname(dest_path)\nif not os.path.exists(dest_dir):\n  os.makedirs(dest_dir)\n\nreq = urllib2.Request(BOTO_URL, headers={'Metadata-Flavor': 'Google'})\ncontents = urllib2.urlopen(req).read()\n\nwith open(dest_path, 'w') as f:\n  f.write(contents)\n"
-    ],
-    "name": "download boto file",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@python.inline@@@@",
-      "@@@STEP_LOG_LINE@python.inline@import os@@@",
-      "@@@STEP_LOG_LINE@python.inline@import urllib2@@@",
-      "@@@STEP_LOG_LINE@python.inline@@@@",
-      "@@@STEP_LOG_LINE@python.inline@BOTO_URL = 'http://metadata/computeMetadata/v1/project/attributes/boto-file'@@@",
-      "@@@STEP_LOG_LINE@python.inline@@@@",
-      "@@@STEP_LOG_LINE@python.inline@dest_path = '[SLAVE_BUILD]/tmp/.boto'@@@",
-      "@@@STEP_LOG_LINE@python.inline@dest_dir = os.path.dirname(dest_path)@@@",
-      "@@@STEP_LOG_LINE@python.inline@if not os.path.exists(dest_dir):@@@",
-      "@@@STEP_LOG_LINE@python.inline@  os.makedirs(dest_dir)@@@",
-      "@@@STEP_LOG_LINE@python.inline@@@@",
-      "@@@STEP_LOG_LINE@python.inline@req = urllib2.Request(BOTO_URL, headers={'Metadata-Flavor': 'Google'})@@@",
-      "@@@STEP_LOG_LINE@python.inline@contents = urllib2.urlopen(req).read()@@@",
-      "@@@STEP_LOG_LINE@python.inline@@@@",
-      "@@@STEP_LOG_LINE@python.inline@with open(dest_path, 'w') as f:@@@",
-      "@@@STEP_LOG_LINE@python.inline@  f.write(contents)@@@",
-      "@@@STEP_LOG_END@python.inline@@@"
-    ]
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
       "\nimport os, sys\nfrom common import chromium_utils # Error? See https://crbug.com/584783.\n\n\nif os.path.exists(sys.argv[1]):\n  chromium_utils.RemoveDirectory(sys.argv[1])\n",
       "[SLAVE_BUILD]/skp_output"
     ],
     "name": "rmtree skp_output",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@import os, sys@@@",
       "@@@STEP_LOG_LINE@python.inline@from common import chromium_utils # Error? See https://crbug.com/584783.@@@",
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@@@@",
@@ skipping 30 matching lines @@
       "[CUSTOM_/_B_WORK]/skia/infra/bots/assets/skp/create.py",
       "--chrome_src_path",
       "[CUSTOM_/_B_WORK]/src",
       "--browser_executable",
       "[CUSTOM_/_B_WORK]/src/out/Release/chrome",
       "--target_dir",
       "[SLAVE_BUILD]/skp_output"
     ],
     "cwd": "[CUSTOM_/_B_WORK]/skia",
     "env": {
-      "AWS_CREDENTIAL_FILE": "[SLAVE_BUILD]/tmp/.boto",
-      "BOTO_CONFIG": "[SLAVE_BUILD]/tmp/.boto",
       "CHROME_HEADLESS": "1",
       "PATH": "[DEPOT_TOOLS]:%(PATH)s"
     },
     "name": "Recreate SKPs"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]