boards: it8xxx2_evb: remove Renode simulation files

This platform was never supported in Renode, it's a leftover from Mi-V
support which probably was copied here. The referenced `it8xxx2_evb.repl`
does not exist in the Renode tree or in the `support` directory.

Signed-off-by: Patryk Koscik <[email protected]>

Author: pkoscik

boards/ite/it8xxx2_evb/board.cmake

@@ -1,4 +1,2 @@
-set(SUPPORTED_EMU_PLATFORMS renode)
-set(RENODE_SCRIPT ${CMAKE_CURRENT_LIST_DIR}/support/it8xxx2_evb.resc)
 board_set_flasher_ifnset(misc-flasher)
 board_finalize_runner_args(misc-flasher)