Bug 1824856 - delete firefox-android gecko-derived toolchain tasks. r=bhearsum,amejiamarmol,geckoview-reviewers,releng-reviewers

The equivalent already exist in gecko.

Differential Revision: https://phabricator.services.mozilla.com/D201450

mobile/android/taskcluster/ci/toolchain/gecko-derived.yml

@@ -1,58 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
----
-task-defaults:
-    run:
-        using: index-search
-    run-on-projects: []
-    worker-type: always-optimized
-
-
-browsertime:
-    attributes:
-        toolchain-artifact: public/build/browsertime.tar.zst
-    description: "Browsertime toolchain"
-    run:
-        index-search:
-            - gecko.cache.level-3.toolchains.v3.browsertime.latest
-
-linux64-ffmpeg-4.1.4:
-    attributes:
-        toolchain-artifact: 'public/ffmpeg-4.1.4-i686-static.tar.xz'
-    description: "FFMPEG fetch"
-    run:
-        index-search:
-            - gecko.cache.level-3.content.v1.linux64-ffmpeg-4.1.4.latest
-
-linux64-geckodriver:
-    attributes:
-        toolchain-artifact: public/build/geckodriver.tar.gz
-    description: "Geckodriver toolchain"
-    run:
-        index-search:
-            - gecko.v2.mozilla-central.latest.geckodriver.linux64
-
-linux64-minidump-stackwalk:
-    attributes:
-        toolchain-artifact: public/build/minidump-stackwalk.tar.zst
-    description: "minidump-stackwalk toolchain"
-    run:
-        index-search:
-            - gecko.cache.level-3.toolchains.v3.linux64-minidump-stackwalk.latest
-
-linux64-node:
-    attributes:
-        toolchain-artifact: public/build/node.tar.zst
-    description: "Node.js toolchain"
-    run:
-        index-search:
-            - gecko.cache.level-3.toolchains.v3.linux64-node-12.latest
-
-linux64-node-16:
-    attributes:
-        toolchain-artifact: public/build/node.tar.zst
-    description: "Node.js toolchain"
-    run:
-        index-search:
-            - gecko.cache.level-3.toolchains.v3.linux64-node-16.latest