Remove some proto_tree_add_text outside the dissector directory.

Change-Id: I890846a0cede755a603243b4048fb5c917b2826b
Reviewed-on: https://code.wireshark.org/review/6112
Petri-Dish: Michael Mann <mmann78@netscape.net>
Reviewed-by: Michael Mann <mmann78@netscape.net>