deleted file mode 100644
--- a/testing/taskcluster/tasks/branches/base_job_flags.yml.orig
+++ /dev/null
@@ -1,152 +0,0 @@
----
-# List of all possible flags for each category of tests used in the case where
-# "all" is specified.
-flags:
-  aliases:
-    # Aliases specify shorthands that can be used in try syntax.  An alias can
-    # specify a simple replacement:
-    #   fb: foobar  -- replaces fb with foobar
-    #
-    # or an expansion into several test suites (which cannot themselves be
-    # aliases):
-    #   footests:
-    #     - foo
-    #     - bar
-    #     - bing
-    #
-    # or a pattern or patterns (identified by leading and trailing /) that
-    # will be matched against the available flags
-    #   dt: /devtools.*/
-    #   footests:
-    #     - browser-foo
-    #     - /foo.*/   -- selects all defined flags starting with "foo"
-    #
-    # Note that alias expansion is performed in the absence of any chunk
-    # prefixes.  For example, the first example above would replace "foo-7"
-    # with "foobar-7".  Note that a few aliases allowed chunks to be specified
-    # without a leading `-`, for example 'mochitest-dt1'. That's no longer
-    # supported.
-    cppunit: /cppunit.*/
-    crashtest: /crashtest.*/
-    crashtest-e10s: /crashtest-e10s.*/
-    e10s: /.*e10s.*/
-    external-media-tests: /external-media-tests.*/
-    firefox-ui-functional: /firefox-ui-functional.*/
-    firefox-ui-functional-e10s: /firefox-ui-functional-e10s.*/
-    gaia-js-integration: /.*gaia-js-integration.*/
-    gtest: /gtest.*/
-    jittest: /jittest.*/
-    jittests: /jittest.*/
-    jsreftest: /jsreftest.*/
-    jsreftest-e10s: /jsreftest-e10s.*/
-    luciddream: /luciddream.*/
-    marionette: /marionette.*/
-    marionette-e10s: /marionette-e10s.*/
-    mochitest: /mochitest.*/
-    mochitests: /mochitest.*/
-    mochitest-e10s: /mochitest-e10s.*/
-    mochitests-e10s: /mochitest-e10s.*/
-    mochitest-debug: /mochitest-debug-.*/
-    mochitest-a11y: /.*mochitest-a11y.*/
-    mochitest-bc: /mochitest-browser-chrome.*/
-    mochitest-bc-e10s: /mochitest-browser-chrome-e10s.*/
-    mochitest-browser-chrome: /mochitest-browser-chrome.*/
-    mochitest-browser-chrome-e10s: /mochitest-browser-chrome-e10s.*/
-    mochitest-chrome: /.*mochitest-chrome.*/
-    mochitest-dt: /mochitest-devtools-chrome.*/
-    mochitest-dt-e10s: /mochitest-devtools-chrome-e10s.*/
-    mochitest-gl: /mochitest-webgl.*/
-    mochitest-gl-e10s: /mochitest-webgl-e10s.*/
-    mochitest-gpu: /mochitest-gpu.*/
-    mochitest-gpu-e10s: /mochitest-gpu-e10s.*/
-    mochitest-clipboard: /mochitest-clipboard.*/
-    mochitest-clipboard-e10s: /mochitest-clipboard-e10s.*/
-    mochitest-jetpack: /mochitest-jetpack.*/
-    mochitest-media: /mochitest-media.*/
-    mochitest-media-e10s: /mochitest-media-e10s.*/
-    mochitest-vg: /mochitest-valgrind.*/
-    reftest: /(plain-)?reftest.*/
-    reftest-no-accel: /(plain-)?reftest-no-accel.*/
-    reftests: /(plain-)?reftest.*/
-    reftests-e10s: /(plain-)?reftest-e10s.*/
-    reftest-no-accel-e10s: /(plain-)?reftest-no-accel-e10s.*/
-    robocop: /robocop.*/
-    web-platform-test: /web-platform-tests.*/
-    web-platform-tests: /web-platform-tests.*/
-    web-platform-tests-e10s: /web-platform-tests-e10s.*/
-    web-platform-tests-reftests: /web-platform-tests-reftests.*/
-    web-platform-tests-reftests-e10s: /web-platform-tests-reftests-e10s.*/
-    xpcshell: /xpcshell.*/
-
-  builds:
-    - linux32_gecko  # b2g desktop linux 32 bit
-    - linux64_gecko  # b2g desktop linux 64 bit
-    - linux64-mulet  # Firefox desktop - b2g gecko linux 64 bit
-    - linux64-haz    # Firefox desktop browser, rooting hazard analysis
-    - linux64-shell-haz  # JS shell, rooting hazard analysis
-    - linux64-mulet-haz  # Firefox desktop - b2g gecko linux 64 bit, rooting hazard analysis
-    - macosx64_gecko # b2g desktop osx 64 bit
-    - win32_gecko    # b2g desktop win 32 bit
-    - nexus-5l-eng
-    - aries
-    - aries-eng
-    - android-api-15
-    - android-api-15-frontend
-    - android-partner-sample1
-    - linux
-    - linux64
-    - linux64-st-an
-    - linux64-artifact
-    - linux64-pgo
-    - macosx64
-    - macosx64-st-an
-
-  tests:
-    - cppunit
-    - crashtest
-    - crashtest-e10s
-    - external-media-tests
-    - firefox-ui-functional
-    - firefox-ui-functional-e10s
-    - gaia-build
-    - gaia-build-unit
-    - gaia-js-integration
-    - gaia-linter
-    - gaia-unit
-    - gaia-unit-oop
-    - gtest
-    - jittests
-    - jsreftest
-    - jsreftest-e10s
-    - luciddream
-    - marionette
-    - marionette-e10s
-    - marionette-webapi
-    - mochitest
-    - mochitest-a11y
-    - mochitest-browser-chrome
-    - mochitest-browser-chrome-e10s
-    - mochitest-chrome
-    - mochitest-devtools-chrome
-    - mochitest-devtools-chrome-e10s
-    - mochitest-e10s
-    - mochitest-jetpack
-    - mochitest-media
-    - mochitest-media-e10s
-    - mochitest-webgl
-    - mochitest-webgl-e10s
-    - mochitest-gpu
-    - mochitest-gpu-e10s
-    - mochitest-clipboard
-    - mochitest-clipboard-e10s
-    - mochitest-valgrind
-    - mozmill
-    - reftest
-    - reftest-e10s
-    - reftest-no-accel
-    - reftest-no-accel-e10s
-    - web-platform-tests
-    - web-platform-tests-e10s
-    - web-platform-tests-reftests
-    - web-platform-tests-reftests-e10s
-    - xpcshell