remove renovate config to trigger onboarding

renovate.json

@@ -1,13 +0,0 @@
-{
-    "regexManagers": [
-        {
-            "fileMatch": [
-                "ansible-test.yml", "Containerfile"
-            ],
-            "matchStrings": [
-                "# renovate: datasource=(?<datasource>.*?) (versioning=(?<versioning>.*?))\n.*_image: (?<depName>.*?):(?<currentValue>.*?)$"
-              ],
-              "versioningTemplate": "{{#if versioning}}{{{versioning}}}{{else}}semver{{/if}}"
-        }
-    ]
-}