Remove AOSP bot from CQ

BUG=468723
R=torne@chromium.org

Review URL: https://codereview.chromium.org/1026803002

Cr-Commit-Position: refs/heads/master@{#321571}

testing/commit_queue/config.json

@@ -105,9 +105,6 @@
         "try_job_verifier": {
             "launched": {
                 "tryserver.chromium.linux": {
-                    "android_aosp": [
-                        "compile"
-                    ],
                     "android_arm64_dbg_recipe": [
                         "defaulttests"
                     ],