Remove unnecessary explicit generic type declarations

They can be inferred correctly even in Java 7, and display as
compiler warnings in IntelliJ.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=173451087

java/google/registry/tools/server/ListDomainsAction.java

@@ -58,8 +58,7 @@ public final class ListDomainsAction extends ListObjectsAction<DomainResource> {
     checkArgument(!tlds.isEmpty(), "Must specify TLDs to query");
     assertTldsExist(tlds);
     ImmutableSortedSet.Builder<DomainResource> builder =
-        new ImmutableSortedSet.Builder<DomainResource>(
-            comparing(DomainResource::getFullyQualifiedDomainName));
+        new ImmutableSortedSet.Builder<>(comparing(DomainResource::getFullyQualifiedDomainName));
     for (List<String> batch : Lists.partition(tlds.asList(), MAX_NUM_SUBQUERIES)) {
       builder.addAll(queryNotDeleted(DomainResource.class, clock.nowUtc(), "tld in", batch));
     }