Remove the tables that track the types that conform to "known" protocols.

The type checker no longer needs them.


Swift SVN r22137

lib/Serialization/SerializedModuleLoader.cpp

@@ -327,16 +327,6 @@ void SerializedModuleLoader::loadExtensions(NominalTypeDecl *nominal,
   }
 }
 
-void
-SerializedModuleLoader::loadDeclsConformingTo(KnownProtocolKind kind,
-                                              unsigned previousGeneration) {
-  for (auto &modulePair : LoadedModuleFiles) {
-    if (modulePair.second <= previousGeneration)
-      continue;
-    modulePair.first->loadDeclsConformingTo(kind);
-  }
-}
-
 bool SerializedModuleLoader::isSerializedAST(StringRef data) {
   using serialization::MODULE_SIGNATURE;
   StringRef signatureStr(reinterpret_cast<const char *>(MODULE_SIGNATURE),