Fix bug in DataSvcHelpers::RegistryEntry::remove introduced in !474

GaudiKernel/src/Lib/RegistryEntry.cpp

@@ -151,15 +151,15 @@ long DataSvcHelpers::RegistryEntry::remove( IRegistry* obj )
 }
 
 /// Remove entry from data store
-long DataSvcHelpers::RegistryEntry::remove( boost::string_ref nam )
+long DataSvcHelpers::RegistryEntry::remove( boost::string_ref path )
 {
-  if ( nam.front() != SEPARATOR ) {
-    std::string prefixed{SEPARATOR};
-    prefixed.append( nam.data(), nam.size() );
-    return remove( prefixed );
-  }
+  if ( path.front() == SEPARATOR ) path.remove_prefix( 1 );
   // if this object is not present, this is an error....
-  auto i = std::find_if( m_store.begin(), m_store.end(), [&]( const auto* j ) { return j->name() == nam; } );
+  auto i = std::find_if( m_store.begin(), m_store.end(), [&]( const auto* j ) {
+    boost::string_ref name{j->name()};
+    name.remove_prefix( 1 );
+    return name == path;
+  } );
   if ( i == m_store.end() ) return StatusCode::FAILURE;
   remove( *i );
   return StatusCode::SUCCESS;