Remove dependency on PAM from the It2Me host

remoting/host/BUILD.gn

Index: remoting/host/BUILD.gn
diff --git a/remoting/host/BUILD.gn b/remoting/host/BUILD.gn
index 12c6bd05e8e26a29063928d65bded17015f9d0b4..3b0e4aca0bfc4517aa3f2721bca0747486ed71f7 100644
--- a/remoting/host/BUILD.gn
+++ b/remoting/host/BUILD.gn
@@ -34,13 +34,13 @@ static_library("host") {
     "//ui/events:dom4_keycode_converter",
   ]
 
-  if (is_linux) {
+  if (is_linux && !is_chromeos) {
     libs += [ "pam" ]
   }
 
   if (use_x11) {
     configs += [
-      #TODO : (kelvinp) Add GTK to the configs.
+      # TODO(kelvinp): Add GTK to the configs.
       "//build/config/linux:x11",
     ]
   } else {
@@ -83,7 +83,6 @@ static_library("host") {
       "continue_window_linux.cc",
       "disconnect_window_linux.cc",
       "local_input_monitor_x11.cc",
-      "remoting_me2me_host.cc",
     ]
   }