[SystemInitializerCommon] Remove divergence from upstream.

Author: Davide Italiano

lldb/source/Initialization/SystemInitializerCommon.cpp

@@ -99,7 +99,6 @@ llvm::Error SystemInitializerCommon::Initialize() {
 
   process_gdb_remote::ProcessGDBRemoteLog::Initialize();
 
-  // Initialize plug-ins
 #if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
   ProcessPOSIXLog::Initialize();
 #endif