Revert "Cherry pick 18.4 changes to udc-widevine-dev"

This reverts commit 7186433edf.

Reason for revert: Build breakage - b/323194350

Change-Id: Ibba4f5289b8f0d5e835dfba9ceb1e601784af634

libwvdrmengine/oemcrypto/test/oemcrypto_decrypt_test.h

@@ -98,10 +98,6 @@ class OEMCryptoSessionTestsDecryptTests
  protected:
   void SetUp() override {
     OEMCryptoLicenseTestAPI16::SetUp();
-    if (wvoec::global_features.derive_key_method ==
-        wvoec::DeviceFeatures::NO_METHOD) {
-      GTEST_SKIP() << "Test for devices that can derive session keys only.";
-    }
     pattern_ = ::testing::get<0>(GetParam());
     cipher_mode_ = ::testing::get<1>(GetParam());
     decrypt_inplace_ = ::testing::get<2>(GetParam()).decrypt_inplace;