Suppress SelfEquals check in third_party code - []

We intend to make this a compilation error in []'s Java compiler, so it is necessary to fix existing occurrences first to avoid breaking builds.

See [] for more details.

Tested:
    TAP --sample for global presubmit queue
    []

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=129248457

value/src/it/functional/src/test/java/com/google/auto/value/AutoValueTest.java

@@ -809,6 +809,7 @@ public boolean equals(Object o) {
     }
   }
 
+  @SuppressWarnings("SelfEquals")
   public void testExplicitEquals() throws Exception {
     ExplicitEquals instance = ExplicitEquals.create();
     assertEquals(0, instance.equalsCount);