ci: delete maturin's autogenerated GitHub Actions workflows because I don't want them

.github/workflows/CI.yml

@@ -1,48 +0,0 @@
-# This file is autogenerated by maturin v1.2.3
-# To update, run
-#
-#    maturin generate-ci github
-#
-name: CI
-
-on:
-  push:
-    branches:
-      - main
-      - master
-    tags:
-      - '*'
-  pull_request:
-  workflow_dispatch:
-
-permissions:
-  contents: read
-
-jobs:
-  linux:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        target: [x86_64, x86, aarch64, armv7, s390x, ppc64le]
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
-        with:
-          python-version: '3.10'
-      - name: Build wheels
-        uses: PyO3/maturin-action@v1
-        with:
-          target: ${{ matrix.target }}
-          args: --release --out dist --find-interpreter
-          sccache: 'true'
-          manylinux: auto
-
-  sdist:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - name: Build sdist
-        uses: PyO3/maturin-action@v1
-        with:
-          command: sdist
-          args: --out dist