Remove useless using

Author: EgorkaKulikov

utbot-framework/src/main/kotlin/org/utbot/framework/modifications/UtBotFieldsModificatorsSearcher.kt

@@ -3,7 +3,6 @@ package org.utbot.framework.modifications
 import org.utbot.framework.plugin.api.ClassId
 import org.utbot.framework.plugin.api.FieldId
 import org.utbot.framework.plugin.api.StatementId
-import org.utbot.framework.plugin.api.util.jField
 
 class UtBotFieldsModificatorsSearcher {