Issue #2901745 by kostyashupenko, pazhyn, MerryHamster, ridhimaabrol24,...

Issue #2901745 by kostyashupenko, pazhyn, MerryHamster, ridhimaabrol24, andypost, vacho, longwave, mfernea: Fix 'PSR2.Namespaces.UseDeclaration.UseAfterNamespace' coding standard

(cherry picked from commit b5fa6958)

core/phpcs.xml.dist

@@ -226,9 +226,7 @@
     <exclude name="PSR2.Classes.PropertyDeclaration.Underscore"/>
   </rule>
   <rule ref="PSR2.Namespaces.NamespaceDeclaration"/>
-  <rule ref="PSR2.Namespaces.UseDeclaration">
-    <exclude name="PSR2.Namespaces.UseDeclaration.UseAfterNamespace"/>
-  </rule>
+  <rule ref="PSR2.Namespaces.UseDeclaration"/>
 
   <!-- Squiz sniffs -->
   <rule ref="Squiz.Arrays.ArrayBracketSpacing"/>