Move archiving back to old bots until we have a prioritized pool

Currently we have to wait for other builds

Bug: 124643718
Change-Id: Id6adc2376106893366325deb8d52c27dadb2aa47
diff --git a/tools/archive.py b/tools/archive.py
index 1ce1d43..f86530a 100755
--- a/tools/archive.py
+++ b/tools/archive.py
@@ -94,9 +94,8 @@
   if not utils.is_bot() and not options.dry_run:
     raise Exception('You are not a bot, don\'t archive builds')
 
-  if utils.is_old_bot():
-    print("Archiving is disabled on old bots, new bots are archiving, see " +
-          "https://ci.chromium.org/p/r8")
+  if utils.is_new_bot():
+    print("Archiving is disabled on new bots.")
     return
 
   # Create maven release which uses a build that exclude dependencies.
@@ -136,7 +135,7 @@
     with open(version_file,'w') as version_writer:
       version_writer.write('version.sha=' + GetGitHash() + '\n')
       version_writer.write(
-          'releaser=go/r8bot (' + os.environ.get('SWARMING_BOT_ID') + ')\n')
+          'releaser=go/r8bot (' + os.environ.get('BUILDBOT_SLAVENAME') + ')\n')
       version_writer.write('version-file.version.code=1\n')
 
     for file in [
diff --git a/tools/utils.py b/tools/utils.py
index 2b0caaf..f2df0ed 100644
--- a/tools/utils.py
+++ b/tools/utils.py
@@ -481,8 +481,8 @@
       android_optional_jar for android_optional_jar in android_optional_jars
       if os.path.isfile(android_optional_jar)]
 
-def is_old_bot():
-  return 'BUILDBOT_BUILDERNAME' in os.environ
+def is_new_bot():
+  return 'SWARMING_BOT_ID' in os.environ
 
 def is_bot():
   return 'USER' in os.environ and os.environ['USER'] == 'chrome-bot'