fix(web controller): remove rosbridge launch from web_controller launch file

[yabuta]

Related Issue(required)

Description(required)

The launch file of the web controller also launches rosbridge, but rosbridge is used for other purposes besides the web controller, so it is not a suitable place to launch it.

Therefore, delete this file and use AutowareArchitectureProposal_launcher to launch it.

Review Procedure(required)

• ros2 launch web_controller web_controller.launch.xml
• check ros2 node list|grep rosbridge, is empty

Related PR(optional)

tier4/autoware_launch-old#175

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[kenji-miyake]

@Mergifyio rebase

[mergify]

rebase

☑️ Nothing to do

• -closed [:pushpin: rebase requirement]
• #commits-behind>0 [:pushpin: rebase requirement]