lib/sqlite, sticker: migrate from class Error to C++ exceptions

src/Instance.cxx

@@ -22,7 +22,6 @@
 #include "Partition.hxx"
 #include "Idle.hxx"
 #include "Stats.hxx"
-#include "util/Error.hxx"
 
 #ifdef ENABLE_DATABASE
 #include "db/DatabaseError.hxx"
@@ -33,6 +32,8 @@
 #endif
 #endif
 
+#include <stdexcept>
+
 #ifdef ENABLE_DATABASE
 
 const Database &
@@ -63,8 +64,12 @@ Instance::OnDatabaseSongRemoved(const char *uri)
 
 #ifdef ENABLE_SQLITE
 	/* if the song has a sticker, remove it */
-	if (sticker_enabled())
-		sticker_song_delete(uri, IgnoreError());
+	if (sticker_enabled()) {
+		try {
+			sticker_song_delete(uri);
+		} catch (const std::runtime_error &) {
+		}
+	}
 #endif
 
 	partition->StaleSong(uri);