Remove unnecessary dependencies

pom.xml

@@ -65,12 +65,6 @@
             <version>${lombok.version}</version>
             <scope>provided</scope>
         </dependency>
-
-        <dependency>
-            <groupId>org.modelmapper</groupId>
-            <artifactId>modelmapper</artifactId>
-            <version>3.0.0</version>
-        </dependency>
     </dependencies>
 
 </project>

src/main/java/io/entgra/token/validator/service/TokenService.java

@@ -5,7 +5,6 @@ import io.entgra.token.validator.dto.TokenDTO;
 import io.entgra.token.validator.dto.ValidationInfoDTO;
 import io.entgra.token.validator.entities.Token;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Service;
 import org.springframework.web.server.ResponseStatusException;