Remove installation job for Linux ARM64 from workflow

.github/workflows/install-test.yml

@@ -15,14 +15,6 @@ jobs:
       - name: Verify installation
         run: godex --version
 
-  install-linux-arm64:
-    runs-on: ubuntu-24.04-arm
-    steps:
-      - name: Download and run install.sh
-        run: curl -sSL https://raw.githubusercontent.com/cheikh2shift/godex/main/install.sh | sh
-      - name: Verify installation
-        run: godex --version
-
   install-macos-amd64:
     runs-on: macos-15-intel
     steps: