Reorganize ChannelMojo related flags.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 8281fc021792787db6d7015fbb91d675013b342a..cec3910dd0ae635251dee02be7ea473e7094e0eb 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -5898,12 +5898,6 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_ENABLE_TCP_FAST_OPEN_DESCRIPTION" desc="Description of the flag that enables TCP Fast Open.">
         Enable the option to send extra authentication information in the initial SYN packet for a previously connected client, allowing faster data send start.
       </message>
-      <message name="IDS_FLAGS_ENABLE_RENDERER_MOJO_CHANNEL_NAME" desc="Name of the flag that enables Mojo channel to renderers.">
-        Enable Mojo based IPC channel for renderers
-      </message>
-      <message name="IDS_FLAGS_ENABLE_RENDERER_MOJO_CHANNEL_DESCRIPTION" desc="Description of the flag that enables Mojo channel to renderers.">
-        Enable Mojo based IPC channel  for communication between browser process and renderer processes.
-      </message>
       <message name="IDS_FLAGS_ENABLE_TOUCH_DRAG_DROP_NAME" desc="Name of the flag that enables touch initiated drag drop.">
         Enable touch initiated drag and drop
       </message>