.shippable: remove the last bits

Shippable is about to sunset in May 2021 [1] and we had already moved
a chunk of the crossbuilds to GitLab. We already cross build
mips-softmmu targets since:

  6bcb5fc0f7 ("gitlab-ci: Add cross-compiling build tests")

and x86 is very well covered.

[1]: https://blog.shippable.com/the-next-step-in-the-evolution-of-shippable-jfrog-pipelines

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210211122750.22645-7-alex.bennee@linaro.org>

.shippable.yml

@@ -1,23 +0,0 @@
-language: c
-git:
-   submodules: false
-env:
-  global:
-    - LC_ALL=C
-  matrix:
-    - IMAGE=debian-amd64
-      TARGET_LIST=x86_64-softmmu,x86_64-linux-user
-    - IMAGE=debian-mips-cross
-      TARGET_LIST=mips-softmmu
-build:
-  pre_ci_boot:
-    image_name: registry.gitlab.com/qemu-project/qemu/qemu/${IMAGE}
-    image_tag: latest
-    pull: true
-    options: "-e HOME=/root"
-  ci:
-    - unset CC
-    - mkdir build
-    - cd build
-    - ../configure --disable-docs ${QEMU_CONFIGURE_OPTS} --target-list=${TARGET_LIST}
-    - make -j$(($(getconf _NPROCESSORS_ONLN) + 1))

MAINTAINERS

@@ -3236,12 +3236,10 @@ S: Maintained
 F: .github/lockdown.yml
 F: .travis.yml
 F: scripts/ci/
-F: .shippable.yml
 F: tests/docker/
 F: tests/vm/
 F: scripts/archive-source.sh
 W: https://travis-ci.org/qemu/qemu
-W: https://app.shippable.com/github/qemu/qemu
 W: http://patchew.org/QEMU/
 
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