Update renovate.json (#454)

Author: ocofaigh

renovate.json

@@ -1,18 +1,4 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": ["github>terraform-ibm-modules/common-dev-assets:commonRenovateConfig"],
-  "packageRules": [
-    {
-      "description": "Allow the locked in provider version to be updated to the latest for deployable architectures",
-      "enabled": true,
-      "matchFileNames": ["solutions/**"],
-      "matchManagers": ["terraform"],
-      "matchDepTypes": ["required_provider"],
-      "rangeStrategy": "bump",
-      "semanticCommitType": "fix",
-      "group": true,
-      "groupName": "required_provider",
-      "commitMessageExtra": "to latest for the deployable architecture solution"
-    }
-  ]
+  "extends": ["github>terraform-ibm-modules/common-dev-assets:commonRenovateConfig"]
 }