remove unused actions

.github/actions/restore-raptor-build-cache/action.yml

@@ -1,26 +0,0 @@
-name: Restore Raptor Build Cache
-description: Restore the cached Raptor build directory for incremental builds.
-
-inputs:
-  key:
-    description: Exact cache key to restore.
-    required: true
-  restore-keys:
-    description: Prefixes used to restore the most recent compatible cache.
-    required: false
-
-outputs:
-  cache-hit:
-    description: Whether the exact cache key was restored.
-    value: ${{ steps.restore-raptor-build-cache.outputs.cache-hit }}
-
-runs:
-  using: composite
-  steps:
-    - name: Restore Raptor Build Cache
-      id: restore-raptor-build-cache
-      uses: actions/cache/restore@v4
-      with:
-        path: build
-        key: ${{ inputs.key }}
-        restore-keys: ${{ inputs.restore-keys }}

.github/actions/save-raptor-build-cache/action.yml

@@ -1,16 +0,0 @@
-name: Save Raptor Build Cache
-description: Save the Raptor build directory after a successful incremental build.
-
-inputs:
-  key:
-    description: Cache key used to save the build directory.
-    required: true
-
-runs:
-  using: composite
-  steps:
-    - name: Save Raptor Build Cache
-      uses: actions/cache/save@v4
-      with:
-        path: build
-        key: ${{ inputs.key }}