refactor: remove unused Random.listOfStrings() method

Should be in 95bfe50 commit.

Part of #1668

Author: php-coder

Diff for: src/test/java/ru/mystamps/web/tests/Random.java

@@ -208,13 +208,6 @@ public static String catalogNumber() {
 		return String.valueOf(between(1, maxCatalogNumber).integer());
 	}
 
-	public static List<String> listOfStrings() {
-		final int minSize = 1;
-		final int maxSize = 3;
-		int size = integer(minSize, maxSize);
-		return sampleMultiple(size, "foo", "bar", "baz");
-	}
-	
 	public static List<Integer> listOfIntegers() {
 		final int minSize = 1;
 		final int maxSize = 3;