update checkstyle rule for PackageDeclaration

src/resources/sharding_checks.xml

@@ -161,9 +161,7 @@
         <module name="SuperFinalize"/>
         <module name="OneStatementPerLine"/>
         <module name="OverloadMethodsDeclarationOrder"/>
-        <module name="PackageDeclaration">
-            <property name="matchDirectoryStructure" value="false"/>
-        </module>
+        <module name="PackageDeclaration"/>
         <module name="ParameterAssignment"/>
         <module name="SimplifyBooleanExpression"/>
         <module name="SimplifyBooleanReturn"/>