fixup! Partially revert "replace deprecated ISO8601Utils with StdDateFormat (#17052)"

Author: Philzen

modules/openapi-generator/src/main/resources/Java/libraries/retrofit2/pom.mustache

@@ -211,11 +211,6 @@
             <artifactId>swagger-annotations</artifactId>
             <version>${swagger-annotations-version}</version>
         </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>${jackson-databind-version}</version>
-        </dependency>
         <!-- @Nullable annotation -->
         <dependency>
             <groupId>com.google.code.findbugs</groupId>