--- a/mozilla-tests/mobile_config.py
+++ b/mozilla-tests/mobile_config.py
@@ -1785,21 +1785,16 @@ for name, branch in items_at_least(BRANC
                 continue
             if not branch['platforms'][platform][slave_plat]['debug_unittest_suites']:
                 continue
             if branch['platforms'][platform]['enable_debug_unittests'] is True:
                 for type in branch['platforms'][platform][slave_plat]:
                     if 'debug_unittest_suite' in type:
                         BRANCHES[name]['platforms'][platform][slave_plat]['debug_unittest_suites'] = deepcopy(ANDROID_MOZHARNESS_MOCHITEST + ANDROID_MOZHARNESS_JSREFTEST + ANDROID_MOZHARNESS_CRASHTEST + ANDROID_MOZHARNESS_PLAIN_REFTEST)
 
-# have to disable this manually or it blows up in misc.py
-for platform_name in ('android', 'android-api-9', 'android-api-11'):
-    if platform_name in BRANCHES['ash']['platforms']:
-        BRANCHES['ash']['platforms'][platform_name]['enable_debug_unittests'] = False
-
 
 def remove_suite_from_slave_platform(BRANCHES, PLATFORMS, suite_to_remove, slave_platform, branches_to_keep=[]):
     """Remove suites named like |suite_to_remove| from all branches on slave platforms named like |slave_platform|.
 
 Updates BRANCHES in place.  Consumes PLATFORMS without side
 effects. Does not remove any suites from the specified
 |branches_to_keep|."""
 
@@ -1827,17 +1822,17 @@ effects. Does not remove any suites from
 
 # schedule jittests for pandas on cedar and try
 # https://bugzilla.mozilla.org/show_bug.cgi?id=912997
 # https://bugzilla.mozilla.org/show_bug.cgi?id=931874
 remove_suite_from_slave_platform(BRANCHES, PLATFORMS, 'jittest', 'panda_android', branches_to_keep=['cedar', 'try'])
 
 # schedule instrumentation tests for pandas on ash and cedar
 # https://bugzilla.mozilla.org/show_bug.cgi?id=1064010
-remove_suite_from_slave_platform(BRANCHES, PLATFORMS, 'instrumentation', 'panda_android', branches_to_keep=['ash', 'cedar'])
+remove_suite_from_slave_platform(BRANCHES, PLATFORMS, 'instrumentation', 'panda_android', branches_to_keep=['cedar'])
 
 
 if __name__ == "__main__":
     import sys
     import pprint
 
     args = sys.argv[1:]
 

--- a/mozilla/b2g_project_branches.py
+++ b/mozilla/b2g_project_branches.py
@@ -40,29 +40,23 @@ PROJECT_BRANCHES = {
         'lock_platforms': True,
         'platforms': {
             'linux32_gecko': {},
             'linux64_gecko': {},
             'linux64_gecko-debug': {},
             'linux64-mulet': {},
         },
     },
-    'ash': {
-        'mozharness_repo_path': 'build/ash-mozharness',
-        'mozharness_repo': 'https://hg.mozilla.org/build/ash-mozharness',
-        'mozharness_tag': 'default',
-    },
+    'ash': {},
     # Not needed on Birch at the moment, bug 977420.
     #'birch': {},
     'cedar': {
         'mozharness_tag': 'default',
     },
-    'cypress': {
-        'mozharness_tag': 'default',
-    },
+    'cypress': {},
     # B2G builds not required on date
     # 'date': {},
     'fig': {
         'lock_platforms': True,
         'platforms': {},
     },
     'gum': {},
     # disabled for bug 985718

--- a/mozilla/project_branches.py
+++ b/mozilla/project_branches.py
@@ -87,39 +87,18 @@ PROJECT_BRANCHES = {
             },
             'win64': {
                 'nightly_signing_servers': 'nightly-signing',
             },
         },
     },
     # no desktop builds for bug 1100150
     # 'alder': {},
-    'ash': {
-        'merge_builds': False,
-        'enable_perproduct_builds': True,
-        'desktop_mozharness_repacks_enabled': False,
-        'enable_nightly': True,
-        'create_snippet': True,
-        'create_partial': True,
-        'create_mobile_snippet': True,
-        'nightly_signing_servers': 'nightly-signing',
-        'l10n_repo_path': 'releases/l10n/mozilla-aurora',
-        'enable_l10n': True,
-        'enable_l10n_onchange': False,
-        'enUS_binaryURL': '/nightly/latest-ash',
-        'l10nNightlyUpdate': True,
-        'l10nDatedDirs': True,
-        'l10n_tree': 'fxrel',
-        'l10n_platforms': ['linux', 'linux64', 'win32', 'macosx64'],
-        'pgo_strategy': 'periodic',
-        'periodic_start_hours': range(1, 24, 3),
-        'talos_suites': {
-            'xperf': 1,
-        },
-        'branch_projects': ['spidermonkey_tier_1', 'spidermonkey_info'],
+    'ash': {,
+        'enable_perproduct_builds': False,
     },
     #'birch': {},  # Bug 1010674
     'cedar': {
         'enable_perproduct_builds': False,
         'mozharness_tag': 'default',
         'enable_talos': True,
         'talos_suites': {
             'xperf': 1,
@@ -128,17 +107,16 @@ PROJECT_BRANCHES = {
         'mobile_platforms': {
             'android-x86': {
                 'enable_opt_unittests': True,
             },
         },
     },
     'cypress': {
         'enable_perproduct_builds': False,
-        'mozharness_tag': 'default',
         'enable_talos': True,
     },
     'date': {
         'gecko_version': 36,
         'mozharness_repo_path': 'users/nthomas_mozilla.com/mozharness-build-promotion',
         'mozharness_repo': 'https://hg.mozilla.org/users/nthomas_mozilla.com/mozharness-build-promotion',
         'mozharness_tag': 'default',
         'desktop_mozharness_builds_enabled': True,