AutoSize TextView - fix measurements

The BoringLayout measurements for auto-size are
incorrect. Removed those and kept the StaticLayout
measurements.

Bug: 36940118
Test: cts-tradefed run cts-dev -m CtsWidgetTestCases -t\
      android.widget.cts.TextViewTest

Change-Id: I772ade08ed26efac05ca56cb7df8cfec0327633b