[router] Alpini dead code removal

Besides dead code removal, also moved a few functions from Aplini's
CollectionUtil to Venice's CollectionUtils.

Author: FelixGV

.github/workflows/VeniceCI-CompatibilityTests.yml

@@ -115,7 +115,7 @@ jobs:
         if: steps.check_alpini_files_changed.outputs.alpini == 'true' && (success() || failure())
         uses: actions/upload-artifact@v4
         with:
-          name: ${{ github.job }}
+          name: ${{ github.job }}-jdk${{ matrix.jdk }}
           path: ${{ github.job }}-jdk${{ matrix.jdk }}-logs.tar.gz
           retention-days: 30
 

gradle/spotbugs/exclude.xml

@@ -258,6 +258,12 @@
       </Class>
     </Or>
   </Match>
+  <Match>
+    <Bug pattern="RC_REF_COMPARISON"/>
+    <Or>
+      <Class name="com.linkedin.venice.utils.CollectionUtilsTest"/>
+    </Or>
+  </Match>
   <Match>
     <!--Auto-generated classes. No plan to fix-->
     <Bug pattern="RI_REDUNDANT_INTERFACES"/>