Remove last editor code dependencies in template build

SConstruct change also makes it possible to outright delete the `editor`
folder in a `tools=no` build, which we use in CI to ensure no invalid
cross-dependencies are added.

.github/actions/godot-build/action.yml

@@ -33,5 +33,6 @@ runs:
           SCONS_CACHE_LIMIT: ${{ inputs.scons-cache-limit }}
       run: |
         echo "Building with flags:" ${{ env.SCONSFLAGS }}
+        if ! ${{ inputs.tools }}; then rm -rf editor; fi  # Ensure we don't include editor code.
         scons p=${{ inputs.platform }} target=${{ inputs.target }} tools=${{ inputs.tools }} tests=${{ inputs.tests }} --jobs=2 ${{ env.SCONSFLAGS }}
         ls -l bin/