[lldb][Process/FreeBSDKernelCore] Remove interactive mode check (llvm#187981)

`debugger.GetCommandInterpreter().IsInteractive()` doesn't necessarily
mean that the debugger is running without `-b` or `--batch` flag. This
caused an issue where the message isn't printed in any case. Remove the
check so the message is always printed for now.

Fixes: 9d9c7fc (llvm#178027)

Signed-off-by: Minsoo Choo <minsoochoo0122@proton.me>

Author: mchoo7

lldb/source/Plugins/Process/FreeBSD-Kernel-Core/ProcessFreeBSDKernelCore.cpp

@@ -394,9 +394,6 @@ void ProcessFreeBSDKernelCore::PrintUnreadMessage() {
   Target &target = GetTarget();
   Debugger &debugger = target.GetDebugger();
 
-  if (!debugger.GetCommandInterpreter().IsInteractive())
-    return;
-
   Status error;
 
   // Find msgbufp symbol (pointer to message buffer)