Drop controller-runtime deps

Author: engedaam

.github/actions/install-deps/action.yaml

@@ -11,13 +11,6 @@ jobs:
     permissions:
       issues: write
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        k8sVersion: ["1.25.x", "1.26.x", "1.27.x", "1.28.x", "1.29.x", "1.30.x", "1.31.x"]
     steps:
     - uses: actions/checkout@v4
-    - uses: ./.github/actions/install-deps
-      with:
-        k8sVersion: ${{ matrix.k8sVersion }}
     - run: make presubmit

.github/toolchain.sh

@@ -15,7 +15,3 @@ verify: ##
 .PHONY: test
 test: ##
 	go test ./...
-
-.PHONY: toolchain
-toolchain: ##
-	./.github/toolchain.sh