Remove unneeded Qt::CorePrivate target. Qt upstream has been cracking
down on use of private headers/targets since 6.9.0 and keeping these
unused targets is becoming increasingly problematic. This appears to
be a carryover from Qt5.

--- plugins/qpa/CMakeLists.txt.orig	2024-10-09 12:19:16 UTC
+++ plugins/qpa/CMakeLists.txt
@@ -25,7 +25,6 @@ target_link_libraries(ComoQpaPlugin PRIVATE
 
 target_link_libraries(ComoQpaPlugin PRIVATE
     epoxy::epoxy
-    Qt::CorePrivate
     Qt::GuiPrivate
     Freetype::Freetype # Must be after Qt platform support libs
     Fontconfig::Fontconfig