Simplify CI workflow (#149)

* Simplify CI workflow

* Update ci.yml

.github/workflows/ci.yml

@@ -11,9 +11,6 @@ concurrency:
 
 env:
   UNIT_TESTS: "true"
-  CARGO_INCREMENTAL: 0
-  SCCACHE_GHA_ENABLED: "true"
-  RUSTC_WRAPPER: "sccache"
 
 jobs:
   unit_test:
@@ -25,21 +22,13 @@ jobs:
         uses: actions/checkout@v4
         with:
           submodules: true
+
       - name: Enable KVM
         run: |
           echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
           sudo udevadm control --reload-rules
           sudo udevadm trigger --name-match=kvm
-      - name: Clean space
-        run: |
-          df -h
-          sudo rm -rf /usr/share/dotnet
-          sudo rm -rf /opt/ghc
-          sudo rm -rf "/usr/local/share/boost"
-          sudo rm -rf /opt/hostedtoolcache/CodeQL
-          sudo docker image prune --all --force
-          echo "======================================================"
-          df -h
+
       - name: Set up JDK 17
         uses: actions/setup-java@v3
         with:
@@ -49,25 +38,12 @@ jobs:
       - name: Setup Android SDK
         uses: android-actions/setup-android@v3
 
-      - name: Rust cache
-        uses: Swatinem/rust-cache@v2
-        with:
-          workspaces: |
-            core/gemstone
-
-      - name: Run sccache-cache
-        uses: mozilla-actions/[email protected]
-
       - name: Install just
         run: cargo install just
 
       - name: Setup NDK
         run: just install-ndk
 
-      - name: Install dependencies
-        run: |
-          just install-typeshare && just install-toolchains
-
       - name: Gradle cache
         uses: gradle/actions/setup-gradle@v3