Remove extra brackets

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206725219

library/core/src/main/java/com/google/android/exoplayer2/extractor/mkv/MatroskaExtractor.java

@@ -1551,7 +1551,7 @@ public final class MatroskaExtractor implements Extractor {
       if (!foundSyncframe) {
       if (!foundSyncframe) {
         input.peekFully(syncframePrefix, 0, Ac3Util.TRUEHD_SYNCFRAME_PREFIX_LENGTH);
         input.peekFully(syncframePrefix, 0, Ac3Util.TRUEHD_SYNCFRAME_PREFIX_LENGTH);
         input.resetPeekPosition();
         input.resetPeekPosition();
-        if ((Ac3Util.parseTrueHdSyncframeAudioSampleCount(syncframePrefix) == 0)) {
+        if (Ac3Util.parseTrueHdSyncframeAudioSampleCount(syncframePrefix) == 0) {
           return;
           return;
         }
         }
         foundSyncframe = true;
         foundSyncframe = true;