CI: Remove unnecessary Ubuntu 22.04 build.

.github/workflows/CI_master.yml

@@ -45,12 +45,6 @@ jobs:
     with:
       artifactBasename: Ubuntu_20-04-${{ github.run_id }}
 
-  Ubuntu_22-04:
-    needs: [Prepare]
-    uses: ./.github/workflows/sub_buildUbuntu2204.yml
-    with:
-      artifactBasename: Ubuntu_22-04-${{ github.run_id }}
-
   Windows:
     needs: [Prepare]
     uses: ./.github/workflows/sub_buildWindows.yml
@@ -67,7 +61,7 @@ jobs:
       changedPythonFiles: ${{ needs.Prepare.outputs.changedPythonFiles }}
 
   WrapUp:
-    needs: [Prepare, Ubuntu_20-04, Ubuntu_22-04, Windows, Lint]
+    needs: [Prepare, Ubuntu_20-04, Windows, Lint]
     if: always()
     uses: ./.github/workflows/sub_wrapup.yml
     with: