This is a follow up CL to previous CLs that converted unit tests to
use Android Testing Support Library but forgot to remove unused import
lines.
Bug: 110805255
Test: verified as follows. No new test failures.
tapas adb LatinIME LatinIMETests arm64 userdebug && \
DISABLE_PROGUARD=true make -j LatinIME && \
adb install -r $OUT/system/app/LatinIME/LatinIME.apk && \
atest LatinIMETests:com.android.inputmethod.latin
Change-Id: I8762b0dfc209bdf68867f725b03a22286026faae
560a5bc596