REVERT

.github/workflows/user_project_ci.yml

diff --git a/.github/workflows/user_project_ci.yml b/.github/workflows/user_project_ci.yml
index f1eb90a..1066f08 100644
--- a/.github/workflows/user_project_ci.yml
+++ b/.github/workflows/user_project_ci.yml
@@ -29,7 +29,6 @@
         run: |
           sudo mkdir -p ${{ env.PDK_ROOT }}
           sudo chown -R $USER:$USER ${{ env.PDK_ROOT }}
-          export MPW_TAG=switch_pdk
           make install
           make openlane
           make pdk-with-volare
@@ -133,7 +132,6 @@
 
       - name: Install dependencies
         run: |
-          export MPW_TAG=switch_pdk
           export CARAVEL_LITE=0
           make install
           make install_mcw