Removed unreliable validation.

Author: And1sS

src/main/java/org/prebid/server/handler/SetuidHandler.java

@@ -121,7 +121,6 @@ private static Map<String, Pair<String, UsersyncMethodType>> collectMap(BidderCa
         final Supplier<Stream<Pair<String, Usersyncer>>> usersyncers = () -> bidderCatalog.names()
                 .stream()
                 .filter(bidderCatalog::isActive)
-                .filter(bidderName -> bidderCatalog.resolveBaseBidder(bidderName).equals(bidderName))
                 .map(bidderName -> bidderCatalog.usersyncerByName(bidderName)
                         .map(usersyncer -> Pair.of(bidderName, usersyncer)))
                 .flatMap(Optional::stream);

src/test/java/org/prebid/server/handler/SetuidHandlerTest.java

@@ -144,7 +144,6 @@ public void setUp() {
 
         given(bidderCatalog.names()).willReturn(new HashSet<>(asList(RUBICON, FACEBOOK, APPNEXUS)));
         given(bidderCatalog.isActive(any())).willReturn(true);
-        given(bidderCatalog.resolveBaseBidder(any())).willAnswer(invocation -> invocation.getArgument(0));
 
         given(bidderCatalog.usersyncerByName(eq(RUBICON))).willReturn(
                 Optional.of(Usersyncer.of(RUBICON, null, redirectMethod())));