This comes from a recent change where RenderDoc plugin is always loaded, but relies on command line to determine if it registers for use.
This led to some unattended processes enabling RenderDoc without wanting it and seeing a perf regression.
Now even unattended processes need -attachRenderDoc on the command line.
Changed automation scripts so that -attachRenderDoc will be used for automation tests if we set AttachRenderDoc=true (it's false by default).
Backed out changes in ndisplay that were working around the perf regression.
#preflight 63bdcd080b7fcef8b00bbc94
[CL 23634548 by Jeremy Moore in ue5-main branch]