ci: resolve mobile build failing due to missing space (#4640)

* chore: remove additionally unused tools

* chore: test

* chore: bunch cleanup commands

.github/workflows/mobile_ci.yaml

@@ -19,7 +19,6 @@ on:
 
 env:
   FLUTTER_VERSION: "3.18.0-0.2.pre"
-  RUST_TOOLCHAIN: "1.75"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
@@ -46,19 +45,14 @@ jobs:
           sudo rm -rf /opt/ghc
           sudo rm -rf "/usr/local/share/boost"
           sudo rm -rf "$AGENT_TOOLSDIRECTORY"
+          sudo docker image prune --all --force
+          sudo rm -rf /opt/hostedtoolcache/codeQL
+          sudo rm -rf ${GITHUB_WORKSPACE}/.git
+          sudo rm -rf $ANDROID_HOME/ndk
 
       - name: Checkout source code
         uses: actions/checkout@v2
 
-      - name: Install Rust toolchain
-        id: rust_toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: ${{ env.RUST_TOOLCHAIN }}
-          target: ${{ matrix.target }}
-          override: true
-          profile: minimal
-
       - name: Install flutter
         id: flutter
         uses: subosito/flutter-action@v2
@@ -70,8 +64,8 @@ jobs:
       - uses: nttld/setup-ndk@v1
         id: setup-ndk
         with:
-            ndk-version: "r24"
-            add-to-path: true
+          ndk-version: "r24"
+          add-to-path: true
 
       - uses: gradle/gradle-build-action@v2
         with: