Fixed Spotless Format Error

Signed-off-by: Pallempati Saketh <pallempati.saketh@fmr.com>

Author: saketh-pallempati

data-prepper-pipeline-parser/src/main/java/org/opensearch/dataprepper/pipeline/parser/PipelineConfigurationValidator.java

@@ -9,7 +9,6 @@
 import org.opensearch.dataprepper.model.configuration.PluginSetting;
 import org.opensearch.dataprepper.pipeline.parser.model.PipelineConfiguration;
 import org.opensearch.dataprepper.pipeline.parser.model.SinkContextPluginSetting;
-import org.opensearch.dataprepper.pipeline.parser.InvalidPipelineConfigurationException;
 import org.opensearch.dataprepper.model.configuration.ConditionalRoute;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;