github: remove dependency-tree-diff workflow

We never extracted much value from it

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

.github/workflows/dependency-tree-diff.yml

@@ -1,57 +0,0 @@
-name: Check dependency tree changes
-on:
-  pull_request_target:
-    types:
-      - opened
-      - edited
-      - synchronize
-    paths:
-      - 'buildSrc/src/main/java/Dependencies.kt'
-      - 'buildSrc/buildDependencies.gradle'
-      - '**/build.gradle.kts'
-
-jobs:
-  compare-dependency-tree:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout pull request tree
-        uses: actions/checkout@c952173edf28a2bd22e1a4926590c1ac39630461
-        with:
-          path: pr-source
-
-      - name: Checkout development tree
-        uses: actions/checkout@c952173edf28a2bd22e1a4926590c1ac39630461
-        with:
-          ref: develop
-          path: dev-source
-
-      - name: Generate and compare dependency trees
-        id: tree-changed
-        run: |
-          set -euxo pipefail
-          curl -sL https://github.com/JakeWharton/dependency-tree-diff/releases/download/1.2.0/dependency-tree-diff.jar -o dependency-tree-diff.jar
-          cd pr-source || exit 1
-          ./gradlew -q :app:dependencies --configuration nonFreeReleaseRuntimeClasspath | tee ../pr-tree.txt
-          cd ../dev-source || exit 1
-          ./gradlew -q :app:dependencies --configuration nonFreeReleaseRuntimeClasspath | tee ../dev-tree.txt
-          cd ../
-          chmod +x dependency-tree-diff.jar
-          ./dependency-tree-diff.jar dev-tree.txt pr-tree.txt > diff.txt
-          if [[ $(($(cat diff.txt | wc -l))) -gt 0 ]]; then
-            echo "::set-output name=diff::$(cat diff.txt)"
-          else
-            echo "::set-output name=diff::null"
-          fi
-
-      - name: Post dependency tree diff to pull request if changed
-        if: ${{ steps.tree-changed.outputs.diff != 'null' }}
-        uses: actions/github-script@626af12fe9a53dc2972b48385e7fe7dec79145c9
-        with:
-          result-encoding: string
-          script: |
-            github.issues.createComment({
-              issue_number: context.issue.number,
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              body: ':warning: **This PR results in dependency tree changes** :warning: \n\n```diff\n${{ steps.tree-changed.outputs.diff }}\n```'
-            })