removed unused imports from templates

Author: HugoMario

src/main/resources/handlebars/JavaJaxRS/cxf/apiServiceImpl.mustache

@@ -15,7 +15,6 @@ import org.apache.cxf.jaxrs.model.wadl.DocTarget;
 
 import org.apache.cxf.jaxrs.ext.multipart.*;
 
-import io.swagger.annotations.Api;
 {{#useSpringAnnotationConfig}}
 import org.springframework.stereotype.Service;
 {{/useSpringAnnotationConfig}}