Address PMD finding

Author: newtork

datamodel/openapi/openapi-core-apache/src/main/java/com/sap/cloud/sdk/services/openapi/apache/apiclient/ApiClient.java

@@ -507,7 +507,6 @@ public <T> T invokeAPI(
     {
         final ClassicRequestBuilder builder =
             buildClassicRequest(
-                basePath,
                 path,
                 method,
                 queryParams,
@@ -555,7 +554,6 @@ protected <T> T invokeAPI(
 
     @Nonnull
     private ClassicRequestBuilder buildClassicRequest(
-        @Nonnull final String basePath,
         @Nonnull final String path,
         @Nonnull final String method,
         @Nullable final List<Pair> queryParams,