Remove API Version TODO Comments

(This is a merge of http://go/wvgerrit/26221)

We have agreed on API 26 for O, so these comments can be removed without
making any further changes.

Bug: 34548395
Test: This is a comment-only change. But I verified it builds.
Change-Id: I490befba4f47902a84b60e562a7a5eb162a9f3be

libwvdrmengine/test/unit/WVDrmFactory_test.cpp

@@ -104,7 +104,6 @@ TEST(WVDrmFactoryTest, CalculatesSpoidUseCorrectly) {
     // version is the first if it's a factory ROM.
     firstApiLevel = property_get_int32("ro.build.version.sdk", 0);
   }
-  // TODO(juce): b/34548395 Make sure this API version is correct.
   bool shouldUseSpoids = (firstApiLevel >= 26);  // Android O
 
   EXPECT_EQ(shouldUseSpoids, factory.areSpoidsEnabled()) <<