[DO NOT MERGE] Revert "Restructed reference root of trust (2/3 DRM Cert)"

This reverts commit f6f5099604.

Reason for revert: Feature missed deadline

Bug: 135283522
Change-Id: Ic86930ee3444c5a6aa1d78ae3a12a9030c29ef92

libwvdrmengine/oemcrypto/ref/src/oemcrypto_rsa_key.cpp

@@ -993,6 +993,7 @@ bool RsaPrivateKey::InitFromBuffer(const uint8_t* buffer, size_t length) {
   }
   // Step 3: Verify field width.
   const int bits = RSA_bits(key.get());
+  LOGD("Loaded RSA private key size: bits = %d", bits);
   field_size_ = RealBitSizeToFieldSize(bits);
   if (field_size_ == kRsaFieldUnknown) {
     LOGE("Unsupported RSA key size: bits = %d", bits);