Remove unused imports in the AbstractScriptParser

Author: artembilan

spring-integration-scripting/src/main/java/org/springframework/integration/scripting/config/AbstractScriptParser.java

@@ -26,7 +26,6 @@
 import org.springframework.beans.factory.support.ManagedMap;
 import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
 import org.springframework.beans.factory.xml.ParserContext;
-import org.springframework.beans.factory.xml.XmlReaderContext;
 import org.springframework.integration.config.xml.IntegrationNamespaceUtils;
 import org.springframework.integration.scripting.DefaultScriptVariableGenerator;
 import org.springframework.integration.scripting.RefreshableResourceScriptSource;