Drop codepoints that are outside the Unicode range - DO NOT MERGE

Bug: 62134807
Test: mmma cts/tests/tests/graphics &&
      adb install -r $OUT/data/app/CtsGraphicsTestCases/CtsGraphicsTestCases.apk &&
      adb shell am instrument -w -e class \
      android.graphics.cts.TypefaceTest \
      android.graphics.cts/android.support.test.runner.AndroidJUnitRunner

Change-Id: Ic780357bde28e233a15709b5fe07cdb3c532f471
(cherry picked from commit d13808590f3f3d332ee9650188aa2d454f5d7938)