TX64X64: Remove two tests.

These tests were testing the accuracy of fwd + inverse transform. But,
given that we have an approximation that zeroes out 3/4th of the
coefficients, we cannot put a reasonable upper bound on the error, and
the test itself doesn't make sense.

Change-Id: I0f44e7bcbe56c6be2cabbe3179af844c41836662

test/av1_fht64x64_test.cc

diff --git a/test/av1_fht64x64_test.cc b/test/av1_fht64x64_test.cc
index adf3ccb..04e2686 100644
--- a/test/av1_fht64x64_test.cc
+++ b/test/av1_fht64x64_test.cc
@@ -73,11 +73,9 @@
   IhtFunc inv_txfm_;
 };
 
-TEST_P(AV1Trans64x64HT, AccuracyCheck) { RunAccuracyCheck(4, 0.2); }
 TEST_P(AV1Trans64x64HT, CoeffCheck) { RunCoeffCheck(); }
 TEST_P(AV1Trans64x64HT, MemCheck) { RunMemCheck(); }
 TEST_P(AV1Trans64x64HT, InvCoeffCheck) { RunInvCoeffCheck(); }
-TEST_P(AV1Trans64x64HT, InvAccuracyCheck) { RunInvAccuracyCheck(4); }
 
 using std::tr1::make_tuple;