Remove java-kotlin from CodeQL workflow

The repo has no Java/Kotlin code, causing CodeQL analysis to fail.

Author: adishaa

.github/workflows/codeql.yml

@@ -19,8 +19,6 @@ jobs:
         include:
           - language: python
             build-mode: none
-          - language: java-kotlin
-            build-mode: none
     steps:
       - name: Checkout repository
         uses: actions/checkout@6ccd57f4c5d15bdc2fef309bd9fb6cc9db2ef1c6