refactor: remove unused TestObjects.createSeriesInGalleryDto() method

Should be in b7a4051 commit.

Part of #1668

Author: php-coder

src/test/java/ru/mystamps/web/service/TestObjects.java

@@ -30,7 +30,6 @@
 import ru.mystamps.web.feature.image.ImageInfoDto;
 import ru.mystamps.web.feature.participant.EntityWithIdDto;
 import ru.mystamps.web.feature.series.SeriesFullInfoDto;
-import ru.mystamps.web.feature.series.SeriesInGalleryDto;
 import ru.mystamps.web.feature.series.SeriesInfoDto;
 import ru.mystamps.web.feature.series.importing.ImportRequestFullInfo;
 import ru.mystamps.web.feature.series.importing.sale.SeriesSaleParsedDataDto;
@@ -131,20 +130,6 @@ public static SeriesInfoDto createSeriesInfoDto() {
 		);
 	}
 
-	public static SeriesInGalleryDto createSeriesInGalleryDto() {
-		Integer numberOfImages = 1;
-		
-		return new SeriesInGalleryDto(
-			Random.id(),
-			nullOr(Random.issueYear()),
-			Random.quantity(),
-			Random.perforated(),
-			Random.id(),
-			numberOfImages,
-			Random.categoryName()
-		);
-	}
-	
 	public static SeriesFullInfoDto createSeriesFullInfoDto() {
 		SeriesInfoDto info = createSeriesInfoDto();
 		return new SeriesFullInfoDto(