[swift6][client] All models conform to Codable so this method should not be needed anymore

Author: 4brunu

modules/openapi-generator/src/main/resources/swift6/JSONEncodingHelper.mustache

@@ -26,20 +26,4 @@ import Foundation
         return params
     }
 
-    {{#nonPublicApi}}internal{{/nonPublicApi}}{{^nonPublicApi}}open{{/nonPublicApi}} class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }