Remove update_conda_lock

.github/workflows/update_conda_lock.yml

diff --git a/.github/workflows/update_conda_lock.yml b/.github/workflows/update_conda_lock.yml
deleted file mode 100644
index 35e77a8..0000000
--- a/.github/workflows/update_conda_lock.yml
+++ /dev/null
@@ -1,46 +0,0 @@
-name: update_conda_lock
-
-on:
-  push:
-  pull_request:
-  schedule:
-    - cron: '0 3 * * *'
-  workflow_dispatch:
-
-jobs:
-  update-locks:
-    runs-on: ubuntu-18.04
-    strategy:
-      fail-fast: false
-    steps:
-    - name: Checkout Repository
-      uses: actions/checkout@v3
-      with:
-        fetch-depth: 0
-        submodules:  'recursive'
-        ssh-key: ${{ secrets.SSH_DEPLOY_KEY }}
-
-    - name: Update Conda Lock
-      uses: SymbiFlow/actions/update_conda_lock@c6142a4ec7859653352757eb8f7c4630f63f96e3
-      with:
-        conda_lock_file:  'conda_lock.yml'
-        environment_file: 'environment.yml'
-
-    - name: Check diff
-      id: check-diff
-      run: |
-        if [[ $(git status --porcelain --ignore-submodules)  ]]; then echo "::set-output name=changes::true"; else echo "::set-output name=changes::false"; fi
-
-    - name: Issue Pull Request
-      if: ${{ github.ref == 'refs/heads/main' && steps.check-diff.outputs.changes == 'true' }}
-      uses: peter-evans/create-pull-request@v4
-      with:
-        token: ${{ secrets.GITHUB_TOKEN }}
-        author: GitHub <noreply@github.com>
-        commit-message: "[BOT] Conda Lock Update"
-        title: "[BOT] Conda Lock Update"
-        body: Pull Request created by the conda lock update workflow.
-        branch: bot-conda-lock-update
-        labels: bot-conda-lock-update,merge-if-green
-        delete-branch: true
-        signoff: true