Do not create a TextClassificationSession if we are not going to use it. am: c94b3450ca am: 19df97df2f am: 9b5c3db0f2

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/libtextclassifier/+/11734845

Change-Id: I5fdc82fcd236f5a5974f1f7a79aa1f8302434638