Fix unnecessary boolean expression

This change fixes boolean expressions like `a && a` and `a || a` where both
arguments are the same, by replacing the entire expression with `a`.

The clean up is being done in preparation for enabling a build error.

*Note to reviewers* the intent may have been to use two different expressions
(e.g. `a && b`). If this isn't the best fix, please suggest an edit in
critique.

More information:
https://docs.google.com[]document/d/1FN2oqU8QmJ2aVSx969rORp-nWcfgdVjqZ6KOFyxYcHY/edit?usp=sharing

Tested:
    TAP train for global presubmit queue
    []    All failing tests were failing before this change

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=127787709

library/src/main/java/com/google/android/exoplayer/extractor/ts/H265Reader.java

@@ -269,7 +269,8 @@ private static MediaFormat parseMediaFormat(NalUnitTargetBuffer vps, NalUnitTarg
     bitArray.readUnsignedExpGolombCodedInt(); // max_transform_hierarchy_depth_inter
     bitArray.readUnsignedExpGolombCodedInt(); // max_transform_hierarchy_depth_intra
     // if (scaling_list_enabled_flag) { if (sps_scaling_list_data_present_flag) {...}}
-    if (bitArray.readBit() && bitArray.readBit()) {
+    boolean scalingListEnabled = bitArray.readBit();
+    if (scalingListEnabled && bitArray.readBit()) {
       skipScalingList(bitArray);
     }
     bitArray.skipBits(2); // amp_enabled_flag (1), sample_adaptive_offset_enabled_flag (1)