Revert^4 "Remove BOTO_CONFIG to use the swarming tasks service account instead of"

This reverts commit d3983fb3caec7db8d342bcc558ac33b84096c17a.

Reason for revert: Try removing this again

Original change's description:
> Revert^3 "Remove BOTO_CONFIG to use the swarming tasks service account instead of"
>
> This reverts commit 27f3b939347e4b367a6ab2aab71e78312231dfc7.
>
> Reason for revert: Still not working
>
> Original change's description:
> > Revert^2 "Remove BOTO_CONFIG to use the swarming tasks service account instead of"
> >
> > This reverts commit 0d2306dfb51e596840725bc22674f938aa29aeb4.
> >
> > Reason for revert: Try again with new permissions
> >
> > Original change's description:
> > > Revert "Remove BOTO_CONFIG to use the swarming tasks service account instead of"
> > >
> > > This reverts commit c397c94283b79a792a76812cd43a6ac5d5282ddf.
> > >
> > > Reason for revert: https://b.corp.google.com/issues/306465816#comment11
> > >
> > > Original change's description:
> > > > Remove BOTO_CONFIG to use the swarming tasks service account instead of
> > > > .boto
> > > >
> > > > Bug: b/306465816
> > > > Change-Id: Iefa84ee3e22703218f2f6cf31bf18b9f5c41b553
> > > > Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/778304
> > > > Reviewed-by: Joe Gregorio <jcgregorio@google.com>
> > > > Commit-Queue: Ravi Mistry <rmistry@google.com>
> > >
> > > Bug: b/306465816
> > > Change-Id: Ic5778d3fa5796d075cf4234ef3fe5fc95f170ddf
> > > No-Presubmit: true
> > > No-Tree-Checks: true
> > > No-Try: true
> > > Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/778836
> > > Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> > > Commit-Queue: Ravi Mistry <rmistry@google.com>
> >
> > Bug: b/306465816
> > Change-Id: I72a0bc27e99999b3415b0515a9924aa691c4cbd6
> > No-Presubmit: true
> > No-Tree-Checks: true
> > No-Try: true
> > Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/778876
> > Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> > Auto-Submit: Ravi Mistry <rmistry@google.com>
> > Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
>
> Bug: b/306465816
> Change-Id: I631a57162cdb8b9a211726f4703ae08041181168
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/778916
> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Auto-Submit: Ravi Mistry <rmistry@google.com>

Bug: b/306465816
Change-Id: I6241e352381b2ebd5a0542ec19723bea07f2ad8c
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/797396
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
Auto-Submit: Ravi Mistry <rmistry@google.com>
Commit-Queue: Joe Gregorio <jcgregorio@google.com>
diff --git a/ct/go/util/util.go b/ct/go/util/util.go
index 5c1220f..790951c 100644
--- a/ct/go/util/util.go
+++ b/ct/go/util/util.go
@@ -808,11 +808,8 @@
 		// instances.
 		pythonExec = BINARY_PYTHON
 	} else if targetPlatform == PLATFORM_ANDROID {
-		env = append(env, "BOTO_CONFIG=/home/chrome-bot/.boto.puppet-bak")
 		// Reset android logcat prior to the run so that we can examine the logs later.
 		util.LogErr(ExecuteCmd(ctx, BINARY_ADB, []string{"logcat", "-c"}, []string{}, ADB_ROOT_TIMEOUT, nil, nil))
-	} else if targetPlatform == PLATFORM_LINUX {
-		env = append(env, "BOTO_CONFIG=/home/chrome-bot/.boto.puppet-bak")
 	}
 
 	// Create buffer for capturing the stdout and stderr of the benchmark run.