Remove redundant Checkstyle suppression

Closes gh-30131

Author: wilkinsona

src/checkstyle/checkstyle-suppressions.xml

@@ -20,7 +20,6 @@
 	<suppress files="[\\/]spring-boot-docs[\\/]" checks="JavadocPackage|JavadocType|JavadocVariable" />
 	<suppress files="[\\/]spring-boot-docs[\\/]" checks="SpringJavadoc" message="\@since" />
 	<suppress files="[\\/]spring-boot-docs[\\/].*jooq" checks="AvoidStaticImport" />
-	<suppress files="[\\/]spring-boot-docs[\\/].*MyRoutingConfiguration\.java" checks="AvoidStaticImport"/>
 	<suppress files="[\\/]spring-boot-smoke-tests[\\/]" checks="JavadocPackage|JavadocType" />
 	<suppress files="[\\/]spring-boot-smoke-tests[\\/]" checks="ImportControl" />
 	<suppress files="[\\/]spring-boot-smoke-tests[\\/]" id="mainCodeIllegalImportCheck" />