Remove obsolete comment

Test: None
Change-Id: I95d71d173b6fbf491b685f375479b20b3f21dce6
diff --git a/Android.mk b/Android.mk
index ccd824a..f6f12af 100644
--- a/Android.mk
+++ b/Android.mk
@@ -47,8 +47,6 @@
 ARM_NEON_TESTS_REFGCCARM = stm-arm-neon.gccarm
 ARM_NEON_TESTS_EXPECTED_INPUT = expected_input4gcc.txt
 
-# TODO(b/27353392): remove -O0 flag when clang would stop miscompiling
-# arm-neon-tests.
 ARM_NEON_TESTS_CFLAGS = -DREFFILE=\"$(ARM_NEON_TESTS_REFGCCARM)\" \
                         -DGCCTESTS_FILE=\"$(ARM_NEON_TESTS_EXPECTED_INPUT)\"