deleted file mode 100644
--- a/testing/mozharness/configs/builds/releng_sub_android_configs/64_api_15_b2gdroid.py
+++ /dev/null
@@ -1,9 +0,0 @@
-config = {
-    'base_name': 'Android armv7 API 15+ b2gdroid %(branch)s',
-    'stage_platform': 'android-api-15-b2gdroid',
-    'build_type': 'api-15-b2gdroid-opt',
-    'src_mozconfig': 'mobile/android/b2gdroid/config/mozconfigs/nightly',
-    'tooltool_manifest_src': 'mobile/android/config/tooltool-manifests/b2gdroid/releng.manifest',
-    'multi_locale_config_platform': 'android',
-    'enable_nightly_promotion': True,
-}

--- a/testing/mozharness/mozharness/mozilla/building/buildbase.py
+++ b/testing/mozharness/mozharness/mozilla/building/buildbase.py
@@ -361,18 +361,16 @@ class BuildOptionParser(object):
         'api-15-gradle-dependencies': 'builds/releng_sub_%s_configs/%s_api_15_gradle_dependencies.py',
         'api-15': 'builds/releng_sub_%s_configs/%s_api_15.py',
         'api-9-debug': 'builds/releng_sub_%s_configs/%s_api_9_debug.py',
         'api-11-debug': 'builds/releng_sub_%s_configs/%s_api_11_debug.py',
         'api-15-debug': 'builds/releng_sub_%s_configs/%s_api_15_debug.py',
         'x86': 'builds/releng_sub_%s_configs/%s_x86.py',
         'api-11-partner-sample1': 'builds/releng_sub_%s_configs/%s_api_11_partner_sample1.py',
         'api-15-partner-sample1': 'builds/releng_sub_%s_configs/%s_api_15_partner_sample1.py',
-        'api-11-b2gdroid': 'builds/releng_sub_%s_configs/%s_api_11_b2gdroid.py',
-        'api-15-b2gdroid': 'builds/releng_sub_%s_configs/%s_api_15_b2gdroid.py',
     }
     build_pool_cfg_file = 'builds/build_pool_specifics.py'
     branch_cfg_file = 'builds/branch_specifics.py'
 
     @classmethod
     def _query_pltfrm_and_bits(cls, target_option, options):
         """ determine platform and bits
 

--- a/testing/taskcluster/scripts/builder/build-linux.sh
+++ b/testing/taskcluster/scripts/builder/build-linux.sh
@@ -18,19 +18,16 @@ echo "running as" $(id)
 : NEED_XVFB                     ${NEED_XVFB:=false}
 
 : MH_CUSTOM_BUILD_VARIANT_CFG   ${MH_CUSTOM_BUILD_VARIANT_CFG}
 : MH_BRANCH                     ${MH_BRANCH:=mozilla-central}
 : MH_BUILD_POOL                 ${MH_BUILD_POOL:=staging}
 
 : WORKSPACE                     ${WORKSPACE:=/home/worker/workspace}
 
-# some linux variants, e.g. b2gdroid, require gaia
-: CHECKOUT_GAIA                      ${CHECKOUT_GAIA:=false}
-
 set -v
 
 fail() {
     echo # make sure error message is on a new line
     echo "[build-linux.sh:error]" "${@}"
     exit 1
 }
 
@@ -92,26 +89,16 @@ if [ 0$DEBUG -ne 0 ]; then
   debug_flag='--debug'
 fi
 
 custom_build_variant_cfg_flag=""
 if [ -n "${MH_CUSTOM_BUILD_VARIANT_CFG}" ]; then
     custom_build_variant_cfg_flag="--custom-build-variant-cfg=${MH_CUSTOM_BUILD_VARIANT_CFG}"
 fi
 
-if [ "$CHECKOUT_GAIA" = true ]; then
-    pull_gaia=$GECKO_DIR/testing/taskcluster/scripts/builder/pull-gaia.sh
-    gaia_props=$GECKO_DIR/testing/taskcluster/scripts/builder/gaia_props.py
-    gaia_dir=$WORKSPACE/build/gaia
-
-    $pull_gaia $GECKO_DIR $gaia_dir $gaia_props
-    rm -f $GECKO_DIR/gaia
-    ln -s $gaia_dir $GECKO_DIR/gaia
-fi
-
 # $TOOLTOOL_CACHE bypasses mozharness completely and is read by tooltool_wrapper.sh to set the
 # cache.  However, only some mozharness scripts use tooltool_wrapper.sh, so this may not be
 # entirely effective.
 export TOOLTOOL_CACHE
 
 # support multiple, space delimited, config files
 config_cmds=""
 for cfg in $MOZHARNESS_CONFIG; do

--- a/testing/taskcluster/tasks/branches/base_job_flags.yml
+++ b/testing/taskcluster/tasks/branches/base_job_flags.yml
@@ -101,17 +101,16 @@ flags:
     - aries
     - aries-ota
     - aries-eng
     - aries-dogfood
     - aries-noril
     - android-api-15
     - android-api-15-frontend
     - android-partner-sample1
-    - android-b2gdroid
     - linux
     - linux64
     - linux64-st-an
     - linux64-artifact
     - macosx64
     - macosx64-st-an
 
   tests:

--- a/testing/taskcluster/tasks/branches/base_jobs.yml
+++ b/testing/taskcluster/tasks/branches/base_jobs.yml
@@ -159,22 +159,16 @@ builds:
       opt:
         task: tasks/builds/opt_macosx64_st-an.yml
   android-api-15-frontend:
     platforms:
       - Android
     types:
       opt:
         task: tasks/builds/android_api_15_frontend.yml
-  android-b2gdroid:
-    platforms:
-      - Android
-    types:
-      opt:
-        task: tasks/builds/android_api_15_b2gdroid.yml
   linux64-mulet-haz:
     platforms:
       - Mulet Linux
     types:
       debug:
         task: tasks/builds/mulet_haz_linux.yml
 
 tests:

deleted file mode 100644
--- a/testing/taskcluster/tasks/builds/android_api_15_b2gdroid.yml
+++ /dev/null
@@ -1,62 +0,0 @@
-$inherits:
-  from: 'tasks/builds/mobile_base.yml'
-  variables:
-    build_name: 'android-api-15-b2gdroid'
-    build_type: 'opt'
-task:
-  metadata:
-      name: '[TC] B2GDroid armv7 API 15+'
-      description: 'B2GDroid armv7 API 15+'
-
-  workerType: android-api-15
-
-  routes:
-    - 'index.buildbot.branches.{{project}}.android-api-15-b2gdroid'
-    - 'index.buildbot.revisions.{{head_rev}}.{{project}}.android-api-15-b2gdroid'
-
-  scopes:
-    - 'docker-worker:cache:level-{{level}}-{{project}}-build-android-api-15-workspace'
-    - 'docker-worker:cache:tooltool-cache'
-    - 'docker-worker:relengapi-proxy:tooltool.download.internal'
-    - 'docker-worker:relengapi-proxy:tooltool.download.public'
-
-  payload:
-    cache:
-      level-{{level}}-{{project}}-build-android-api-15-workspace: '/home/worker/workspace'
-      tooltool-cache: '/home/worker/tooltool-cache'
-
-    features:
-      relengAPIProxy: true
-
-    env:
-      # inputs to mozharness
-      MOZHARNESS_SCRIPT: 'mozharness/scripts/fx_desktop_build.py'
-      # TODO: make these additional configuration files go away
-      MOZHARNESS_CONFIG: >
-          builds/releng_base_android_64_builds.py
-          disable_signing.py
-          platform_supports_post_upload_to_latest.py
-      MH_CUSTOM_BUILD_VARIANT_CFG: api-15-b2gdroid
-      MH_BRANCH: {{project}}
-      MH_BUILD_POOL: taskcluster
-
-      CHECKOUT_GAIA: true
-
-    maxRunTime: 36000
-
-    command: ["/bin/bash", "bin/build.sh"]
-
-  extra:
-    treeherderEnv:
-      - production
-      - staging
-    treeherder:
-      machine:
-        # see https://github.com/mozilla/treeherder/blob/master/ui/js/values.js
-        platform: b2gdroid-4-0-armv7-api15
-    # Rather then enforcing particular conventions we require that all build
-    # tasks provide the "build" extra field to specify where the build and tests
-    # files are located.
-    locations:
-      build: 'public/build/target.linux-x86_64.tar.bz2'
-      tests: 'public/build/target.tests.zip'