Fix 'potential memory leak' compiler warning.

This CL fixes the following compiler warning:

frameworks/av/media/libstagefright/SampleTable.cpp:569:9: warning:
 Memory allocated by 'new[]' should be deallocated by 'delete[]', not
 'delete'.

Bug: 33137046
Test: Compiled with change; no warning generated.

Change-Id: I29abd90e02bf482fa840d1f7206ebbdacf7dfa37
(cherry picked from commit 158c197b668ad684f92829db6a31bee3aec794ba)
(cherry picked from commit 37c428cd521351837fccb6864f509f996820b234)

SampleTable::SampleTable(const sp<DataSource> &source)
 : mDataSource(source),
      mChunkOffsetOffset(-1),
      mChunkOffsetType(0),
      mNumChunkOffsets(0),
      mSampleToChunkOffset(-1),
      mNumSampleToChunkOffsets(0),
      mSampleSizeOffset(-1),
      mSampleSizeFieldSize(0),
      mDefaultSampleSize(0),
      mNumSampleSizes(0),
      mHasTimeToSample(false),
      mTimeToSampleCount(0),
      mTimeToSample(NULL),
      mSampleTimeEntries(NULL),
      mCompositionTimeDeltaEntries(NULL),
      mNumCompositionTimeDeltaEntries(0),
      mCompositionDeltaLookup(new CompositionDeltaLookup),
      mSyncSampleOffset(-1),
      mNumSyncSamples(0),
      mSyncSamples(NULL),
      mLastSyncSampleIndex(0),
      mSampleToChunkEntries(NULL),
      mTotalSize(0) {
    mSampleIterator = new SampleIterator(this);
}

SampleTable::SampleTable(const sp<DataSource> &source)
 : mDataSource(source),
      mChunkOffsetOffset(-1),
      mChunkOffsetType(0),
      mNumChunkOffsets(0),
      mSampleToChunkOffset(-1),
      mNumSampleToChunkOffsets(0),
      mSampleSizeOffset(-1),
      mSampleSizeFieldSize(0),
      mDefaultSampleSize(0),
      mNumSampleSizes(0),
      mHasTimeToSample(false),
      mTimeToSampleCount(0),
      mTimeToSample(NULL),
      mSampleTimeEntries(NULL),
      mCompositionTimeDeltaEntries(NULL),
      mNumCompositionTimeDeltaEntries(0),
      mCompositionDeltaLookup(new CompositionDeltaLookup),
      mSyncSampleOffset(-1),
      mNumSyncSamples(0),
      mSyncSamples(NULL),
      mLastSyncSampleIndex(0),
      mSampleToChunkEntries(NULL),
      mTotalSize(0) {
    mSampleIterator = new SampleIterator(this);
}
