fully remove OTRGui (#2982)

* linux local debug working

* built in extraction working on linux

* try a thing

* one more thing to try

* try using dir

* does this get the subdirectories?

* component before pattern

* loop i guess

* maybe component was the issue?

* zapd stuff i guess

* maybe this

* this feels promising

* g != q

* appimage is working, try fixing glfw issue on windows

* don't copy zapd.exe

* hopefully this gets the things we need in the assets dir

* is that where those went?

* try another thing

* another thing to try

* grasping at straws

* cmake makes no sense sometimes

* really just trying anything here now

* this is what i was expecting to work

* ls

* try doing it without the cmake again

* i think this might do the trick

* try with a slash

* one more thing to try

* pal_oot.txt

* maybe this makes things work on mac

---------

Co-authored-by: briaguya <briaguya@alice>

scripts/linux/appimage/build.sh

@@ -1,7 +1,6 @@
 #!/bin/bash
 
 cmake --no-warn-unused-cli -H. -Bbuild-cmake -GNinja -DCMAKE_BUILD_TYPE:STRING=Release
-cmake --build build-cmake --target OTRGui --
 cmake --build build-cmake --config Release --
 
 (cd build-cmake && cpack -G External)