Revert to using x-ms-azure-resource extension rather than path heuris…

…tics to identify read-only resources

src/autorest.bicep/src/resources.ts

@@ -241,13 +241,6 @@ export function getProviderDefinitions(codeModel: CodeModel, host: AutorestExten
       }
     });
 
-    // This plugin determines what resources are defined in a given ARM swagger definition via the following three
-    // heuristics:
-    //   1. If a path uses the PUT HTTP method, it represents an addressable resource that may be created and updated.
-    //   2. If a path uses the GET HTTP method whose response schema uses the `x-ms-azure-resource` Swagger extension,
-    //      it represents an addressable resource that may be read.
-    //   3. If a path uses the GET HTTP *and* ends in a path parameter, it most likely represents an addressable
-    //      resource that may be read.
     const resourcesByProvider: Dictionary<ResourceDefinition[]> = {};
     for (const lcPath of new Set<string>([...Object.keys(putOperationsByPath), ...Object.keys(getOperationsByPath)])) {
       const putOperation = putOperationsByPath[lcPath];
@@ -266,12 +259,9 @@ export function getProviderDefinitions(codeModel: CodeModel, host: AutorestExten
         );
       } else if (getData && isResourceSchema(getData.responseSchema)) {
         parseResult = parseResourceMethod(getData.request.path, getData.parameters, apiVersion, true, false);
-      } else if (getData && parseResourceTypes(getData.parameters, getData.request.path).success) {
-        logWarning(`Assuming ${lcPath} is a resource due to the path pattern used. Response definition is missing`
-          + " the `x-ms-azure-resource` Swagger extension.");
-        parseResult = parseResourceMethod(getData.request.path, getData.parameters, apiVersion, true, false);
       } else {
-        // A non-resource get with no corresponding put is most likely a list endpoint
+        // A non-resource get with no corresponding put is most likely a collection or utility endpoint.
+        // No types should be generated
         continue;
       }