Remove 'Build on any branch' job

.github/workflows/build.yaml

@@ -1,49 +0,0 @@
-# Builds and pushes docker images on main and tags
-
-name: Build on any branch
-on:
-  push:
-    branches:
-      - '**'
-      - "!main"
-    paths:
-      - "Makefile"
-      - "pom.xml"
-      - ".github/workflows/build.yaml"
-      - "config"
-      - "src/**"
-      - "acceptance_tests/**"
-      - "ci/**"
-
-jobs:
-  build:
-    name: Build
-    runs-on: ubuntu-latest
-    timeout-minutes: 60
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v4
-      with:
-        submodules: recursive
-    - name: Setup Java
-      uses: actions/setup-java@v4
-      with:
-        distribution: 'temurin'
-        java-version: '21'
-        cache: 'maven'
-
-    - name: Validate source code formatting
-      run: make lint
-
-    - name: Build and test
-      run: |
-        make install test
-
-    - name: Build docker images
-      run: |
-        make build-image
-
-    - name: Remove project jars from cached repository
-      run: |
-        rm -rf ~/.m2/repository/org/geoserver
-        find ~/.m2/repository -name "*SNAPSHOT*" -type d | xargs rm -rf {}