Revert "PgnReader: castling moves can be check(mate)"
Revert "PgnReader: castling moves can be check(mate)"

This reverts commit 713bbafb2af4ff039b0667ac2866d6937f8fdbbf.

The check and checkmate indicators are already removed from the SAN move
when PgnReader checks for castling.

ProgramFOX/Chess.NET