Remove unzip requirement from GH flow again

Change-Id: I964438564c2f3c3379e8b2f1b9be244eee47f274
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 8f1e032..7f2fea0 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -23,8 +23,6 @@
       - uses: actions/checkout@v2
       - name: perl -V
         run: perl -V
-      - name: Install unzip
-        run: apt install unzip
       - name: Install dependencies
         run: |
           cpanm -n --installdeps .