fix(snap): remove double env variable (#1131)

.github/workflows/linux.yml

@@ -146,6 +146,4 @@ jobs:
         with:
           snap: ${{ steps.build.outputs.snap }}
           release: stable
-        env:
-          SNAPCRAFT_STORE_CREDENTIALS: ${{ secrets.SNAP_STORE_LOGIN }}
         if: env.SHOULD_DEPLOY == 'yes'