dtoverlay: Remove dtoverlay-pre and dtoverlay-post

As noted in #47, the content
of these scripts is no-longer relevant. The hooks remain in the code,
should anybody feel the need to do something before or after updating
the list of overlays.

Author: pelwell

dtmerge/CMakeLists.txt

@@ -27,6 +27,3 @@ install(FILES dtoverlay.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
 add_custom_command(TARGET dtoverlay POST_BUILD COMMAND ln;-sf;dtoverlay;dtparam)
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/dtparam DESTINATION ${CMAKE_INSTALL_BINDIR})
 install(FILES dtparam.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
-
-set(DTOVERLAY_SCRIPTS dtoverlay-pre dtoverlay-post)
-install(PROGRAMS ${DTOVERLAY_SCRIPTS} DESTINATION ${CMAKE_INSTALL_BINDIR})