ci: Disable the disk cache

The disk cache was based on GitHub Action's immutable caches with a
static cache and thus likely contained outdated results. It also results
in spurious persistent failures on Windows such as:

```
ERROR: D:/a/jazzer/jazzer/deploy/BUILD.bazel:65:12: MergeJars deploy/jazzer-junit-project-src.jar failed: Exec failed due to IOException: 2 errors during bulk transfer:
java.io.IOException: D:/a/jazzer/jazzer/%HOME%/bazel-disk/cas/44/44e1a1356c8b7423f3b6c8cef5d75fdd6bf193f03d7bc416f81a3c3cd86166a2 (Permission denied)
java.io.IOException: D:/a/jazzer/jazzer/%HOME%/bazel-disk/cas/44/44e1a1356c8b7423f3b6c8cef5d75fdd6bf193f03d7bc416f81a3c3cd86166a2 (Permission denied)
```

Since we already use a remote cache, disabling the disk cache should not
harm build times. In fact, the CI Sense jobs didn't even use the cache,
but paid the cost for setting it up.

Author: fmeum

.github/workflows/fuzzing-featured.yaml

@@ -47,11 +47,6 @@ jobs:
           chmod u+x cifuzz_installer
           ./cifuzz_installer --install-dir $CIFUZZ_INSTALL_DIR
 
-      - name: Mount Bazel disk cache
-        uses: actions/cache@v3
-        with:
-          path: "/home/runner/.cache/bazel-disk"
-          key: bazel-disk-cache-linux-8
       - name: Set Build Buddy config
         run: $CHECKOUT_DIR/.github/scripts/echoBuildBuddyConfig.sh ${{ secrets.BUILDBUDDY_API_KEY }} >> $GITHUB_ENV
         shell: bash

.github/workflows/fuzzing.yaml

@@ -39,11 +39,6 @@ jobs:
           chmod u+x cifuzz_installer
           ./cifuzz_installer --install-dir $CIFUZZ_INSTALL_DIR
 
-      - name: Mount Bazel disk cache
-        uses: actions/cache@v3
-        with:
-          path: "/home/runner/.cache/bazel-disk"
-          key: bazel-disk-cache-linux-8
       - name: Set Build Buddy config
         run: $CHECKOUT_DIR/.github/scripts/echoBuildBuddyConfig.sh ${{ secrets.BUILDBUDDY_API_KEY }} >> $GITHUB_ENV
         shell: bash

.github/workflows/run-all-tests.yml

@@ -43,14 +43,11 @@ jobs:
           - os: ubuntu-20.04
             arch: "linux"
             bazel_args: "//launcher/android:jazzer_android //tests/benchmarks"
-            cache: "/home/runner/.cache/bazel-disk"
           - os: macos-12
             arch: "macos-x86_64"
             bazel_args: "--xcode_version_config=//.github:host_xcodes //launcher/android:jazzer_android"
-            cache: "/private/var/tmp/bazel-disk"
           - os: windows-2019
             arch: "windows"
-            cache: "%HOME%/bazel-disk"
 
     steps:
       - uses: actions/checkout@v3
@@ -67,18 +64,12 @@ jobs:
         if: contains(matrix.os, 'mac')
         run: codesign --remove-signature "$JAVA_HOME"/bin/java
 
-      - name: Mount Bazel disk cache
-        uses: actions/cache@v3
-        with:
-          path: ${{ matrix.cache }}
-          key: bazel-disk-cache-${{ matrix.arch }}-${{ matrix.jdk }}
-
       - name: Set Build Buddy config
         run: .github/scripts/echoBuildBuddyConfig.sh ${{ secrets.BUILDBUDDY_API_KEY }} >> $GITHUB_ENV
         shell: bash
 
       - name: Build & Test
-        run: bazelisk test ${{env.BUILD_BUDDY_CONFIG}} --java_runtime_version=local_jdk_${{ matrix.jdk }} --disk_cache=${{ matrix.cache }} ${{ matrix.bazel_args }} ${{ matrix.extra_bazel_args }} --build_tag_filters="-no-${{ matrix.arch }}-jdk${{ matrix.jdk }},-no-jdk${{ matrix.jdk }}" --test_tag_filters="-no-${{ matrix.arch }}-jdk${{ matrix.jdk }},-no-jdk${{ matrix.jdk }}" //...
+        run: bazelisk test ${{env.BUILD_BUDDY_CONFIG}} --java_runtime_version=local_jdk_${{ matrix.jdk }} ${{ matrix.bazel_args }} ${{ matrix.extra_bazel_args }} --build_tag_filters="-no-${{ matrix.arch }}-jdk${{ matrix.jdk }},-no-jdk${{ matrix.jdk }}" --test_tag_filters="-no-${{ matrix.arch }}-jdk${{ matrix.jdk }},-no-jdk${{ matrix.jdk }}" //...
 
       - name: Copy Bazel log
         if: always()