Revert "[autotest] Add a new field require_ssp in afe_jobs table"

This reverts commit e17ca03ed8d26c17261e47abd3f41fc5bbc98768.

Change-Id: I3300de55bfe3e0266095a3e43094f9ba0fb0f79d
Reviewed-on: https://chromium-review.googlesource.com/250691
Tested-by: Simran Basi <sbasi@chromium.org>
Reviewed-by: Dan Shi <dshi@chromium.org>
Commit-Queue: Dan Shi <dshi@chromium.org>
Trybot-Ready: Dan Shi <dshi@chromium.org>
diff --git a/.gitignore b/.gitignore
index bf0311c..5393ca3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -61,6 +61,3 @@
 puppylab/Vagrantfile
 puppylab/chromeos_lab_core_cluster.box
 puppylab/.vagrant
-
-# Container directory
-containers/
diff --git a/frontend/migrations/098_add_require_ssp.py b/frontend/migrations/098_add_require_ssp.py
deleted file mode 100644
index 3959a58..0000000
--- a/frontend/migrations/098_add_require_ssp.py
+++ /dev/null
@@ -1,7 +0,0 @@
-UP_SQL = """
-ALTER TABLE afe_jobs ADD COLUMN require_ssp tinyint(1) NULL;
-"""
-
-DOWN_SQL = """
-ALTER TABLE afe_jobs DROP COLUMN require_ssp;
-"""
diff --git a/global_config.ini b/global_config.ini
index 52d9a53..a80f3b5 100644
--- a/global_config.ini
+++ b/global_config.ini
@@ -66,14 +66,6 @@
 # It will sleep 10 seconds and then pass successfully.
 testing_mode: False
 
-# Directory stores LXC containers
-container_path: /usr/local/autotest/containers
-# Download link for base image of container
-container_base: http://storage.googleapis.com/chromeos-image-archive/autotest-containers/base.tar.xz
-# Enable server-side package using container
-# TODO(dshi): Change this to True after SSP via container is rolled out.
-enable_ssp_container: False
-
 [CLIENT]
 drop_caches: False
 drop_caches_between_iterations: False