drop cache entirely

.github/workflows/pr-comment.yaml

@@ -5,10 +5,10 @@ on:
     types: [completed]
 jobs:
   pr_comment:
-    if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'success'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/github-script@v6
+        continue-on-error: true
         with:
           # This snippet is public-domain, taken from
           # https://github.com/oprypin/nightly.link/blob/master/.github/workflows/pr-comment.yml

.github/workflows/xmruw.yaml

@@ -22,11 +22,6 @@ jobs:
           git config --global user.email "ci@mrcyjanek.net"
           git config --global user.name "CI mrcyjanek.net"
           ./apply_patches.sh ${{ matrix.coin }}
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ${{ matrix.coin }}
-          key: aarch64-linux-android-${{ matrix.coin }}-${{ runner.os }}-${{ hashFiles('patches/${{ matrix.coin }}/*.patch') }}
       - name: ${{ matrix.coin }}/aarch64-linux-android
         run: ./build_single.sh ${{ matrix.coin }} aarch64-linux-android -j$(nproc)
       - name: clone xmruw